0001437749-20-022363 | 10-Q | XBRL Viewer

Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]

Note 1 – Basis of Presentation

The unaudited interim Consolidated Financial Statements of Proto Labs, Inc. (Protolabs, the Company, we, us or our) have been prepared in accordance with accounting principles generally accepted in the United States of America (U.S. GAAP) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. In the opinion of management, the accompanying financial statements reflect all adjustments necessary for a fair presentation of the Company’s statements of financial position, results of operations and cash flows for the periods presented. Except as otherwise disclosed herein, these adjustments consist of normal, recurring items. Operating results for interim periods are not necessarily indicative of results that may be expected for the fiscal year as a whole.

The preparation of the financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues, expenses, and the related disclosures at the date of the financial statements and during the reporting period. Actual results could materially differ from these estimates. For further information, refer to the audited Consolidated Financial Statements and Notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2019 as filed with the Securities and Exchange Commission (SEC) on February 26, 2020.

The accompanying Consolidated Balance Sheet as of December 31, 2019 was derived from the audited Consolidated Financial Statements but does not include all disclosures required by U.S. GAAP for a full set of financial statements. This Form 10-Q should be read in conjunction with the Company’s Consolidated Financial Statements and Notes included in the Annual Report on Form 10-K filed on February 26, 2020 as referenced above.

Note 2 - Recent Accounting Pronouncements

9 Months Ended

Sep. 30, 2020

Significant Accounting Policies [Text Block]

Note 2 – Recent Accounting Pronouncements

Recently Adopted Accounting Pronouncements

During the first quarter of 2020, the Company adopted the Financial Accounting Standards Board (FASB) Accounting Standards Update (ASU) 2016-13, Financial Instruments – Credit Losses, which is intended to provide financial statement users with more decision-useful information about the expected credit losses on financial instruments held by a reporting entity at each reporting date. The adoption of this guidance had no material impact on our consolidated financial statements.

During the fourth quarter of 2019, the Company early adopted the FASB ASU 2017-04, Intangibles – Goodwill and Other, which is intended to simplify the subsequent measurement of goodwill. The adoption of this guidance had no material impact on our consolidated financial statements.

Note 3 - Net Income Per Common Share

9 Months Ended

Sep. 30, 2020

Earnings Per Share [Text Block]

Note 3 – Net Income per Common Share

Basic net income per share is computed based on the weighted-average number of common shares outstanding. Diluted net income per share is computed based on the weighted-average number of common shares outstanding, increased by the number of additional shares that would have been outstanding had potentially dilutive common shares been issued and reduced by the number of shares the Company could have repurchased from the proceeds from issuance of the potentially dilutive shares. Potentially dilutive shares of common stock include stock options, restricted stock units and restricted stock awards granted under stock-based compensation plans and shares committed to be purchased under the employee stock purchase plan. Performance stock units are excluded from the calculation of dilutive potential common shares until the performance conditions have been satisfied.

The table below sets forth the computation of basic and diluted net income per share:

	*Three Months Ended*				*Nine Months Ended*
	*September 30,*				*September 30,*
(in thousands, except share and per share amounts)	*2020*		*2019*		*2020*		*2019*
Net income	$	14,697	$	16,792	$	41,288	$	48,469

Basic - weighted-average shares outstanding:		26,736,709		26,846,030		26,724,715		26,894,420
Effect of dilutive securities:
Employee stock options and other		149,724		159,311		136,932		178,453
Diluted - weighted-average shares outstanding:		26,886,433		27,005,341		26,861,647		27,072,873
Net income per share:
Basic	$	0.55	$	0.63	$	1.54	$	1.80
Diluted	$	0.55	$	0.62	$	1.54	$	1.79

Note 4 - Goodwill and Other Intangible Assets

9 Months Ended

Sep. 30, 2020

Goodwill and Intangible Assets Disclosure [Text Block]

Note 4 – Goodwill and Other Intangible Assets

There were no changes in the carrying amount of Goodwill during the three and nine months ended September 30, 2020.

Intangible assets other than goodwill at September 30, 2020 and December 31, 2019 were as follows:

	*September 30, 2020*							*December 31, 2019*							*Useful*	*Weighted Average*
(in thousands)	*Gross*		*Accumulated Amortization*			*Net*		*Gross*		*Accumulated Amortization*			*Net*		*Life (in years)*	*Useful Life Remaining (in years)*
Intangible assets with finite lives:
Marketing assets	$	930	$	(597	)	$	333	$	930	$	(527	)	$	403	10.0	3.5
Non-compete agreement		270		(234	)		36		270		(222	)		48	2.0 - 5.0	2.3
Software technology		13,229		(3,302	)		9,927		13,229		(2,275	)		10,954	10.0	7.3
Customer relationships		10,070		(5,259	)		4,811		10,070		(4,106	)		5,964	6.0 - 9.0	3.1
Total intangible assets	$	24,499	$	(9,392	)	$	15,107	$	24,499	$	(7,130	)	$	17,369

Amortization expense for intangible assets was $0.8 million and $0.9 million for the three months ended September 30, 2020 and 2019, respectively, and $2.3 million and $2.6 million for the nine months ended September, 2020 and 2019, respectively.

Estimated aggregated amortization expense based on the current carrying value of the amortizable intangible assets is as follows:

(in thousands)	*Estimated Amortization Expense*
Remaining 2020	$	754
2021		3,016
2022		3,016
2023		2,813
2024		1,400
Thereafter		4,108
Total estimated amortization expense	$	15,107

Note 5 - Fair Value Measurements

9 Months Ended

Sep. 30, 2020

Fair Value Disclosures [Text Block]

Note 5 – Fair Value Measurements

Accounting Standards Codification (ASC 820), Fair Value Measurement (ASC 820), defines fair value as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. ASC 820 also establishes a fair value hierarchy that requires classification based on observable and unobservable inputs when measuring fair value. There are three levels of inputs that may be used to measure fair value:

Level 1—Quoted prices in active markets for identical assets or liabilities.

Level 2—Observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.

Level 3—Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.

The Company’s cash consists of bank deposits. The Company’s cash equivalents measured at fair value consist of money market mutual funds. The Company determines the fair value of these investments using Level 1 inputs.

The following table summarizes financial assets as of September 30, 2020 and December 31, 2019 measured at fair value on a recurring basis:

	*September 30, 2020*						*December 31, 2019*
(in thousands)	*Level 1*		*Level 2*		*Level 3*		*Level 1*		*Level 2*		*Level 3*
Financial Assets:
Cash and cash equivalents
Money market mutual fund	$	66,374	$	-	$	-	$	68,962	$	-	$	-
Total	$	66,374	$	-	$	-	$	68,962	$	-	$	-

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

Note 6 - Marketable Securities

9 Months Ended

Sep. 30, 2020

Investment [Text Block]

Note 6 – Marketable Securities

The Company invests in short-term and long-term agency, municipal, corporate and other debt securities. The securities are categorized as held-to-maturity and are recorded at amortized cost, net of an allowance for credit losses. Categorization as held-to-maturity is based on the Company’s ability and intent to hold these securities to maturity. The following table summarizes information regarding the Company’s short-term and long-term marketable securities as of September 30, 2020 and December 31, 2019:

	*September 30, 2020*
(in thousands)	*Cost*		*Unrealized Gains*		*Unrealized Losses*			*Fair Value*
U.S. municipal securities	$	17,795	$	68	$	-		$	17,863
Corporate debt securities		38,876		283		(25	)		39,134
U.S. government agency securities		19,003		9		(15	)		18,997
Certificates of deposit/time deposits		5,189		105		-			5,294
Commercial paper		1,499		-		-			1,499
Total marketable securities	$	82,362	$	465	$	(40	)	$	82,787

	*December 31, 2019*
(in thousands)	*Cost*		*Unrealized Gains*		*Unrealized Losses*			*Fair Value*
U.S. municipal securities	$	10,204	$	9	$	(3	)	$	10,210
Corporate debt securities		26,944		80		(12	)		27,012
U.S. government agency securities		6,274		1		(7	)		6,268
Certificates of deposit/time deposits		1,484		22		-			1,506
Commercial paper		3,491		-		-			3,491
Total marketable securities	$	48,397	$	112	$	(22	)	$	48,487

Fair values for the corporate debt securities are primarily determined based on quoted market prices (Level 1). Fair values for the U.S. municipal securities, U.S. government agency securities, certificates of deposit and U.S. treasury securities are primarily determined using dealer quotes or quoted market prices for similar securities (Level 2).

During the first quarter of 2020, the Company adopted the FASB ASU 2016-13, Financial Instruments – Credit Losses. The Company calculated the expected credit loss for each security in its portfolio using the probability-of-default method. The Company concluded the adoption of the guidance had no material impact on its consolidated financial statements.

Classification of marketable securities as current or non-current is based upon the security’s maturity date as of the date of these financial statements.

The September 30, 2020 balance of held-to-maturity debt securities by contractual maturity is shown in the following table at amortized cost, net of an allowance for credit losses. Actual maturities may differ from contractual maturities because the issuers of the securities may have the right to prepay obligations without prepayment penalties.

	*September 30,*
(in thousands)	*2020*
Due in one year or less	$	30,993
Due after one year through five years		51,369
Total marketable securities	$	82,362

Note 7 - Inventory

9 Months Ended

Sep. 30, 2020

Inventory Disclosure [Text Block]

Note 7 – Inventory

Inventory consists primarily of raw materials, which are recorded at the lower of cost or market using the average-cost method, which approximates first-in, first-out (FIFO) cost. The Company periodically reviews its inventory for slow-moving, damaged and discontinued items and provides allowances to reduce such items identified to their recoverable amounts.

The Company’s inventory consisted of the following as of the dates indicated:

	*September 30,*			*December 31,*
(in thousands)	*2020*			*2019*
Raw materials	$	10,650		$	9,818
Work in process		16			501
Total inventory		10,666			10,319
Allowance for obsolescence		(264	)		(244	)
Inventory, net of allowance	$	10,402		$	10,075

Note 8 - Stock-based Compensation

9 Months Ended

Sep. 30, 2020

Share-based Payment Arrangement [Text Block]

Note 8 – Stock-Based Compensation

Under the Company’s 2012 Long-Term Incentive Plan, as amended (the 2012 Plan), the Company has the ability to grant stock options, stock appreciation rights (SARs), restricted stock, restricted stock units, other stock-based awards and cash incentive awards. Awards under the 2012 Plan have a maximum term of ten years from the date of grant. The compensation committee may provide that the vesting or payment of any award will be subject to the attainment of specified performance measures in addition to the satisfaction of any continued service requirements and the compensation committee will determine whether such measures have been achieved. The per-share exercise price of stock options and SARs granted under the 2012 Plan generally may not be less than the fair market value of a share of our common stock on the date of the grant.

Employee Stock Purchase Plan

The Company’s 2012 Employee Stock Purchase Plan (ESPP) allows eligible employees to purchase a variable number of shares of the Company’s common stock each offering period at a discount through payroll deductions of up to 15 percent of their eligible compensation, subject to plan limitations. The ESPP provides for six-month offering periods with a single purchase period ending May 15 and November 15, respectively. At the end of each offering period, employees are able to purchase shares at 85 percent of the lower of the fair market value of the Company’s common stock on the first trading day of the offering period or on the last trading day of the offering period.

Stock-Based Compensation Expense

Stock-based compensation expense was $3.9 million and $3.2 million for the three months ended September 30, 2020 and 2019, respectively, and $10.6 million and $9.7 million for the nine months ended September 30, 2020 and 2019, respectively.

Stock Options

The following table summarizes stock option activity during the nine months ended September 30, 2020:

				*Weighted-*
				*Average*
	*Stock Options*			*Exercise Price*
Options outstanding at December 31, 2019		276,266		$	72.38
Granted		60,065			105.79
Exercised		(64,932	)		57.24
Forfeited		(37,842	)		67.92
Options outstanding at September 30, 2020		233,557		$	85.89

Exercisable at September 30, 2020		135,837		$	98.38

The outstanding options generally have a term of ten years. For employees, options granted become exercisable ratably over the vesting period, which is generally a period from four to five years, beginning on the first anniversary of the grant date, subject to the employee’s continuing service to the Company. For directors, options generally become exercisable in full on the first anniversary of the grant date.

The weighted-average grant date fair value of options that were granted during the nine months ended September 30, 2020 was $45.32.

The following table provides the assumptions used in the Black-Scholes pricing model valuation of options during the nine months ended September 30, 2020 and 2019:

	*Nine Months Ended September 30,*
	*2020*	*2019*
Risk-free interest rate	0.50 - 1.47%	2.35 - 2.58%
Expected life (years)	6.25	6.25
Expected volatility	42.40 - 43.83%	42.52 - 42.74%
Expected dividend yield	0%	0%

As of September 30, 2020, there was $4.8 million of unrecognized compensation expense related to unvested stock options, which is expected to be recognized over a weighted-average period of 2.8 years.

Restricted Stock

Restricted stock awards are share-settled awards and restrictions lapse ratably over the vesting period, which is generally a period from four to five years, beginning on the first anniversary of the grant date, subject to the employee's continuing service to the Company. For directors, restrictions generally lapse in full on the first anniversary of the grant date.

The following table summarizes restricted stock activity during the nine months ended September 30, 2020:

				*Weighted-*
				*Average*
				*Grant Date*
	*Restricted*			*Fair Value*
	*Stock*			*Per Share*
Restricted stock at December 31, 2019		314,973		$	89.55
Granted		108,179			117.76
Restrictions lapsed		(100,596	)		84.57
Forfeited		(12,221	)		92.61
Restricted stock at September 30, 2020		310,335		$	98.84

As of September 30, 2020, there was $24.3 million of unrecognized compensation expense related to non-vested restricted stock, which is expected to be recognized over a weighted-average period of 2.6 years.

Performance Stock

Performance stock units (PSUs) are expressed in terms of a target number of PSUs, with anywhere between 0 percent and 150 percent of that target number capable of being earned and vesting at the end of a three-year performance period depending on the Company’s performance in the final year of the performance period and the award recipient’s continued employment. The Company’s PSUs granted from 2017 to 2019 are based on performance conditions and the related compensation cost is based on the probability that the performance conditions will be achieved. The Company’s PSUs granted in 2020 are based on market conditions and the related compensation cost is based on the fair value at grant date calculated using a Monte Carlo pricing model.

The following table summarizes performance stock activity during the nine months ended September 30, 2020:

				*Weighted-*
				*Average*
				*Grant Date*
	*Performance*			*Fair Value*
	*Stock*			*Per Share*
Performance stock at December 31, 2019		9,383		$	58.35
Granted		19,956			118.66
Restrictions lapsed		(7,113	)		58.35
Performance change		-			-
Forfeited		(2,270	)		58.35
Performance stock at September 30, 2020		19,956		$	118.66

The following table provides the assumptions used in the Monte Carlo pricing model valuation of PSUs during the nine months ended September 30, 2020:

		Nine Months Ended September 30,
		2020
Risk-free interest rate		1.41%
Expected life (years)		2.88
Expected volatility		38.70%
Expected dividend yield		0%

As of September 30, 2020, there was $1.9 million of unrecognized compensation expense related to non-vested performance stock, which is expected to be recognized over a weighted-average period of 2.4 years.

Employee Stock Purchase Plan

The following table presents the assumptions used to estimate the fair value of the ESPP during the nine months ended September 30, 2020 and 2019:

	*Nine Months Ended September 30,*
	*2020*	*2019*
Risk-free interest rate	0.17 - 1.59%	2.33 - 2.35%
Expected life (months)	6.00	6.00
Expected volatility	42.63 - 59.99%	37.36 - 53.57%
Expected dividend yield	0%	0%

Note 9 - Accumulated Other Comprehensive Loss

9 Months Ended

Sep. 30, 2020

Disclosure of Reclassification Amount [Text Block]

Note 9 – Accumulated Other Comprehensive Income (Loss)

Other comprehensive income (loss) is comprised entirely of foreign currency translation adjustments. The following table presents the changes in accumulated other comprehensive income (loss) balances during the three and nine months ended September 30, 2020 and 2019:

	*Three Months Ended*						*Nine Months Ended*
	*September 30,*						*September 30,*
(in thousands)	*2020*			*2019*			*2020*			*2019*
Foreign currency translation adjustments
Balance at beginning of period	$	(9,634	)	$	(8,494	)	$	(7,018	)	$	(8,492	)
Other comprehensive income (loss) before reclassifications		3,110			(2,150	)		494			(2,152	)
Amounts reclassified from accumulated other comprehensive loss		-			-			-			-
Net current-period other comprehensive income (loss)		3,110			(2,150	)		494			(2,152	)
Balance at end of period	$	(6,524	)	$	(10,644	)	$	(6,524	)	$	(10,644	)

Note 10 - Income Taxes

9 Months Ended

Sep. 30, 2020

Income Tax Disclosure [Text Block]

Note 10 – Income Taxes

The Company is subject to income tax in multiple jurisdictions and the use of estimates is required to determine the provision for income taxes. For the three months ended September 30, 2020 and 2019, the Company recorded an income tax provision of $3.7 million and $4.7 million, respectively. For the nine months ended September 30, 2020 and 2019, the Company recorded an income tax provision of $10.1 million and $13.4 million, respectively. The income tax provision is based on the estimated annual effective tax rate for the year applied to pre-tax income. The effective income tax rate for the three months ended September 30, 2020 was 20.1 percent compared to 21.9 percent in the same period of the prior year. The effective tax rate decreased by 1.8 percent for the three months ended September 30, 2020 when compared to the same period in 2019 primarily due to an increase in tax benefits from the vesting of restricted stock and the exercise of stock options. The effective income tax rate for the nine months ended September 30, 2020 was 19.7 percent compared to 21.6 percent in the same period of the prior year. The effective tax rate decreased by 1.9 percent for the nine months ended September 30, 2020 when compared to the same period in 2019 primarily due to an increase in tax benefits from the vesting of restricted stock and the exercise of stock options.

The effective income tax rate for the nine months ended September 30, 2020 differs from the U.S. federal statutory rate of 21.0 percent due to various factors, including operating in multiple state and foreign jurisdictions and tax credits for which the Company qualifies.

The Company had unrecognized tax benefits totaling $4.9 million as of September 30, 2020 and $4.6 million as of December 31, 2019, respectively, all of which, if recognized, would affect the Company’s effective tax rate. The Company recognizes interest and penalties related to income tax matters in income tax expense, and reports the liability in current or long-term income taxes payable as appropriate.

The Coronavirus Aid, Relief, and Economic Security (CARES) Act was signed into law on March 27, 2020. The CARES Act is meant to infuse companies with various income and payroll tax cash benefits to ease the impact of the pandemic. A technical correction to the Tax Cuts and Jobs Act of 2017 was included in the CARES Act allowing qualified improvement property to claim bonus depreciation for respective assets placed in service in 2018 and 2019. The impact of the CARES Act to the Company was a $2.6 million reduction in our income taxes payable and a corresponding increase to our deferred tax liability. In addition, the Company has elected to defer deposits of the employer portion of the Social Security tax for the quarter ended September 30, 2020 through the quarter ended December 31, 2020. The Social Security taxes are being accrued for and will be paid beginning in 2021.

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

Note 11 - Segment Reporting

9 Months Ended

Sep. 30, 2020

Segment Reporting Disclosure [Text Block]

Note 11 – Segment Reporting

The Company’s reportable segments are based on the internal reporting used by the Company’s Chief Executive Officer, who is the chief operating decision maker (CODM), to assess operating performance and make decisions about the allocation of resources. The Corporate Unallocated and Japan category includes non-reportable segments, as well as research and development and general and administrative costs that the Company does not allocate directly to its operating segments.

Intercompany transactions primarily relate to intercontinental activity and have been eliminated and are excluded from the reported amounts. The difference between income from operations and pre-tax income relates to foreign currency-related gains and losses and interest income on cash balances and investments, which are not allocated to business segments.

Revenue and income from operations by reportable segment for the three and nine months ended September 30, 2020 and 2019 were as follows:

	*Three Months Ended September 30,*				*Nine Months Ended September 30,*
(in thousands)	*2020*		*2019*		*2020*		*2019*
Revenue:
United States	$	85,608	$	92,916	$	262,507	$	271,877
Europe		18,897		20,721		56,413		62,915
Japan		2,999		3,818		10,267		12,047
Total revenue	$	107,504	$	117,455	$	329,187	$	346,839

	*Three Months Ended September 30,*						*Nine Months Ended September 30,*
(in thousands)	*2020*			*2019*			*2020*			*2019*
Income from Operations:
United States	$	25,164		$	28,109		$	74,602		$	82,367
Europe		3,764			4,045			10,389			12,022
Corporate Unallocated and Japan		(11,259	)		(10,881	)		(36,146	)		(34,095	)
Total Income from Operations	$	17,669		$	21,273		$	48,845		$	60,294

Total long-lived assets at September 30, 2020 and December 31, 2019 were as follows:

	*September 30,*		*December 31,*
(in thousands)	*2020*		*2019*
Total long-lived assets:
United States	$	219,425	$	210,171
Europe		54,628		45,019
Japan		7,842		8,522
Total Assets	$	281,895	$	263,712

Revenue by product line for the three and nine months ended September 30, 2020 and 2019 were as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
(in thousands)	2020		2019		2020		2019
Revenue:
Injection Molding	$	53,257	$	55,167	$	165,927	$	165,935
CNC Machining		33,115		40,219		99,760		116,979
3D Printing		16,294		15,898		46,478		45,644
Sheet Metal		3,988		5,280		14,306		15,777
Other Revenue		850		891		2,716		2,504
Total revenue	$	107,504	$	117,455	$	329,187	$	346,839

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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Note 3 - Net Income Per Common Share (Tables)

9 Months Ended

Sep. 30, 2020

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	*Three Months Ended*				*Nine Months Ended*
	*September 30,*				*September 30,*
(in thousands, except share and per share amounts)	*2020*		*2019*		*2020*		*2019*
Net income	$	14,697	$	16,792	$	41,288	$	48,469

Basic - weighted-average shares outstanding:		26,736,709		26,846,030		26,724,715		26,894,420
Effect of dilutive securities:
Employee stock options and other		149,724		159,311		136,932		178,453
Diluted - weighted-average shares outstanding:		26,886,433		27,005,341		26,861,647		27,072,873
Net income per share:
Basic	$	0.55	$	0.63	$	1.54	$	1.80
Diluted	$	0.55	$	0.62	$	1.54	$	1.79

Note 4 - Goodwill and Other Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2020

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	*September 30, 2020*							*December 31, 2019*							*Useful*	*Weighted Average*
(in thousands)	*Gross*		*Accumulated Amortization*			*Net*		*Gross*		*Accumulated Amortization*			*Net*		*Life (in years)*	*Useful Life Remaining (in years)*
Intangible assets with finite lives:
Marketing assets	$	930	$	(597	)	$	333	$	930	$	(527	)	$	403	10.0	3.5
Non-compete agreement		270		(234	)		36		270		(222	)		48	2.0 - 5.0	2.3
Software technology		13,229		(3,302	)		9,927		13,229		(2,275	)		10,954	10.0	7.3
Customer relationships		10,070		(5,259	)		4,811		10,070		(4,106	)		5,964	6.0 - 9.0	3.1
Total intangible assets	$	24,499	$	(9,392	)	$	15,107	$	24,499	$	(7,130	)	$	17,369

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

(in thousands)	*Estimated Amortization Expense*
Remaining 2020	$	754
2021		3,016
2022		3,016
2023		2,813
2024		1,400
Thereafter		4,108
Total estimated amortization expense	$	15,107

Note 5 - Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2020

Fair Value, Assets Measured on Recurring Basis [Table Text Block]

	*September 30, 2020*						*December 31, 2019*
(in thousands)	*Level 1*		*Level 2*		*Level 3*		*Level 1*		*Level 2*		*Level 3*
Financial Assets:
Cash and cash equivalents
Money market mutual fund	$	66,374	$	-	$	-	$	68,962	$	-	$	-
Total	$	66,374	$	-	$	-	$	68,962	$	-	$	-

Note 6 - Marketable Securities (Tables)

9 Months Ended

Sep. 30, 2020

Debt Securities, Held-to-maturity [Table Text Block]

	*September 30, 2020*
(in thousands)	*Cost*		*Unrealized Gains*		*Unrealized Losses*			*Fair Value*
U.S. municipal securities	$	17,795	$	68	$	-		$	17,863
Corporate debt securities		38,876		283		(25	)		39,134
U.S. government agency securities		19,003		9		(15	)		18,997
Certificates of deposit/time deposits		5,189		105		-			5,294
Commercial paper		1,499		-		-			1,499
Total marketable securities	$	82,362	$	465	$	(40	)	$	82,787

	*December 31, 2019*
(in thousands)	*Cost*		*Unrealized Gains*		*Unrealized Losses*			*Fair Value*
U.S. municipal securities	$	10,204	$	9	$	(3	)	$	10,210
Corporate debt securities		26,944		80		(12	)		27,012
U.S. government agency securities		6,274		1		(7	)		6,268
Certificates of deposit/time deposits		1,484		22		-			1,506
Commercial paper		3,491		-		-			3,491
Total marketable securities	$	48,397	$	112	$	(22	)	$	48,487

Investments Classified by Contractual Maturity Date [Table Text Block]

	*September 30,*
(in thousands)	*2020*
Due in one year or less	$	30,993
Due after one year through five years		51,369
Total marketable securities	$	82,362

Note 7 - Inventory (Tables)

9 Months Ended

Sep. 30, 2020

Schedule of Inventory, Current [Table Text Block]

	*September 30,*			*December 31,*
(in thousands)	*2020*			*2019*
Raw materials	$	10,650		$	9,818
Work in process		16			501
Total inventory		10,666			10,319
Allowance for obsolescence		(264	)		(244	)
Inventory, net of allowance	$	10,402		$	10,075

Note 8 - Stock-based Compensation (Tables)

9 Months Ended

Sep. 30, 2020

Share-based Payment Arrangement, Option, Activity [Table Text Block]

				*Weighted-*
				*Average*
	*Stock Options*			*Exercise Price*
Options outstanding at December 31, 2019		276,266		$	72.38
Granted		60,065			105.79
Exercised		(64,932	)		57.24
Forfeited		(37,842	)		67.92
Options outstanding at September 30, 2020		233,557		$	85.89

Exercisable at September 30, 2020		135,837		$	98.38

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	*Nine Months Ended September 30,*
	*2020*	*2019*
Risk-free interest rate	0.50 - 1.47%	2.35 - 2.58%
Expected life (years)	6.25	6.25
Expected volatility	42.40 - 43.83%	42.52 - 42.74%
Expected dividend yield	0%	0%

Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block]

				*Weighted-*
				*Average*
				*Grant Date*
	*Restricted*			*Fair Value*
	*Stock*			*Per Share*
Restricted stock at December 31, 2019		314,973		$	89.55
Granted		108,179			117.76
Restrictions lapsed		(100,596	)		84.57
Forfeited		(12,221	)		92.61
Restricted stock at September 30, 2020		310,335		$	98.84

Schedule of Nonvested Performance-based Units Activity [Table Text Block]

				*Weighted-*
				*Average*
				*Grant Date*
	*Performance*			*Fair Value*
	*Stock*			*Per Share*
Performance stock at December 31, 2019		9,383		$	58.35
Granted		19,956			118.66
Restrictions lapsed		(7,113	)		58.35
Performance change		-			-
Forfeited		(2,270	)		58.35
Performance stock at September 30, 2020		19,956		$	118.66

Schedule of Share-based Payment Award, Awards Other Than Stock Options, Valuation Assumptions [Table Text Block]

		Nine Months Ended September 30,
		2020
Risk-free interest rate		1.41%
Expected life (years)		2.88
Expected volatility		38.70%
Expected dividend yield		0%

Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block]

	*Nine Months Ended September 30,*
	*2020*	*2019*
Risk-free interest rate	0.17 - 1.59%	2.33 - 2.35%
Expected life (months)	6.00	6.00
Expected volatility	42.63 - 59.99%	37.36 - 53.57%
Expected dividend yield	0%	0%

Note 9 - Accumulated Other Comprehensive Loss (Tables)

9 Months Ended

Sep. 30, 2020

Comprehensive Income (Loss) [Table Text Block]

	*Three Months Ended*						*Nine Months Ended*
	*September 30,*						*September 30,*
(in thousands)	*2020*			*2019*			*2020*			*2019*
Foreign currency translation adjustments
Balance at beginning of period	$	(9,634	)	$	(8,494	)	$	(7,018	)	$	(8,492	)
Other comprehensive income (loss) before reclassifications		3,110			(2,150	)		494			(2,152	)
Amounts reclassified from accumulated other comprehensive loss		-			-			-			-
Net current-period other comprehensive income (loss)		3,110			(2,150	)		494			(2,152	)
Balance at end of period	$	(6,524	)	$	(10,644	)	$	(6,524	)	$	(10,644	)

Note 11 - Segment Reporting (Tables)

9 Months Ended

Sep. 30, 2020

Income from Operations by Geographic Area [Table Text Block]

	*Three Months Ended September 30,*						*Nine Months Ended September 30,*
(in thousands)	*2020*			*2019*			*2020*			*2019*
Income from Operations:
United States	$	25,164		$	28,109		$	74,602		$	82,367
Europe		3,764			4,045			10,389			12,022
Corporate Unallocated and Japan		(11,259	)		(10,881	)		(36,146	)		(34,095	)
Total Income from Operations	$	17,669		$	21,273		$	48,845		$	60,294

Long-lived Assets by Geographic Areas [Table Text Block]

	*September 30,*		*December 31,*
(in thousands)	*2020*		*2019*
Total long-lived assets:
United States	$	219,425	$	210,171
Europe		54,628		45,019
Japan		7,842		8,522
Total Assets	$	281,895	$	263,712

Disaggregation of Revenue [Table Text Block]

	Three Months Ended September 30,				Nine Months Ended September 30,
(in thousands)	2020		2019		2020		2019
Revenue:
Injection Molding	$	53,257	$	55,167	$	165,927	$	165,935
CNC Machining		33,115		40,219		99,760		116,979
3D Printing		16,294		15,898		46,478		45,644
Sheet Metal		3,988		5,280		14,306		15,777
Other Revenue		850		891		2,716		2,504
Total revenue	$	107,504	$	117,455	$	329,187	$	346,839

Operating Segments [Member]

Revenue from External Customers by Geographic Areas [Table Text Block]

	*Three Months Ended September 30,*				*Nine Months Ended September 30,*
(in thousands)	*2020*		*2019*		*2020*		*2019*
Revenue:
United States	$	85,608	$	92,916	$	262,507	$	271,877
Europe		18,897		20,721		56,413		62,915
Japan		2,999		3,818		10,267		12,047
Total revenue	$	107,504	$	117,455	$	329,187	$	346,839

Note 3 - Net Income Per Common Share - Computation of Basic and Diluted Net Income Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2020	Sep. 30, 2019
Net income	$ 14,697	$ 12,607	$ 13,984	$ 16,792	$ 16,166	$ 15,511	$ 41,288	$ 48,469
Basic - weighted-average shares outstanding: (in shares)	26,736,709			26,846,030			26,724,715	26,894,420
Employee stock options and other (in shares)	149,724			159,311			136,932	178,453
Diluted - weighted-average shares outstanding: (in shares)	26,886,433			27,005,341			26,861,647	27,072,873
Basic (in dollars per share)	$ 0.55			$ 0.63			$ 1.54	$ 1.80
Diluted (in dollars per share)	$ 0.55			$ 0.62			$ 1.54	$ 1.79

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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Note 4 - Goodwill and Other Intangible Assets (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Goodwill, Period Increase (Decrease), Total	$ 0		$ 0
Amortization of Intangible Assets, Total	$ 800	$ 900	$ 2,300	$ 2,600

Note 4 - Goodwill and Other Intangible Assets - Intangible Assets Other Than Goodwill (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Gross	$ 24,499	$ 24,499
Accumulated Amortization	(9,392)	(7,130)
Net	15,107	17,369
Marketing-Related Intangible Assets [Member]
Gross	930	930
Accumulated Amortization	(597)	(527)
Net	$ 333	403
Useful Life (Year)	10 years
Weighted average useful life remaining (Year)	3 years 6 months
Noncompete Agreements [Member]
Gross	$ 270	270
Accumulated Amortization	(234)	(222)
Net	$ 36	48
Weighted average useful life remaining (Year)	2 years 3 months 18 days
Noncompete Agreements [Member] \| Minimum [Member]
Useful Life (Year)	2 years
Noncompete Agreements [Member] \| Maximum [Member]
Useful Life (Year)	5 years
Computer Software, Intangible Asset [Member]
Gross	$ 13,229	13,229
Accumulated Amortization	(3,302)	(2,275)
Net	$ 9,927	10,954
Useful Life (Year)	10 years
Weighted average useful life remaining (Year)	7 years 3 months 18 days
Customer Relationships [Member]
Gross	$ 10,070	10,070
Accumulated Amortization	(5,259)	(4,106)
Net	$ 4,811	$ 5,964
Weighted average useful life remaining (Year)	3 years 1 month 6 days
Customer Relationships [Member] \| Minimum [Member]
Useful Life (Year)	6 years
Customer Relationships [Member] \| Maximum [Member]
Useful Life (Year)	9 years

Note 4 - Goodwill and Other Intangible Assets - Estimated Aggregated Amortization Expense (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Remaining 2020	$ 754
2021	3,016
2022	3,016
2023	2,813
2024	1,400
Thereafter	4,108
Total estimated amortization expense	$ 15,107	$ 17,369

Note 5 - Fair Value Measurements - Fair Value of Financial Assets Measured on a Recurring Basis (Details) - Fair Value, Recurring [Member] - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Fair Value, Inputs, Level 1 [Member]
Money market mutual fund	$ 66,374	$ 68,962
Total	66,374	68,962
Fair Value, Inputs, Level 2 [Member]
Money market mutual fund	0	0
Total	0	0
Fair Value, Inputs, Level 3 [Member]
Money market mutual fund	0	0
Total	$ 0	$ 0

Note 6 - Marketable Securities - Short-term and Long-term Marketable Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Amortized Cost	$ 82,362	$ 48,397
Unrealized Gains	465	112
Unrealized Losses	(40)	(22)
Fair Value	82,787	48,487
Bank Time Deposits [Member]
Amortized Cost	5,189	1,484
Unrealized Gains	105	22
Unrealized Losses	0	0
Fair Value	5,294	1,506
US States and Political Subdivisions Debt Securities [Member]
Amortized Cost	17,795	10,204
Unrealized Gains	68	9
Unrealized Losses	0	(3)
Fair Value	17,863	10,210
Corporate Debt Securities [Member]
Amortized Cost	38,876	26,944
Unrealized Gains	283	80
Unrealized Losses	(25)	(12)
Fair Value	39,134	27,012
US Government Agencies Debt Securities [Member]
Amortized Cost	19,003	6,274
Unrealized Gains	9	1
Unrealized Losses	(15)	(7)
Fair Value	18,997	6,268
Commercial Paper, Not Included with Cash and Cash Equivalents [Member]
Amortized Cost	1,499	3,491
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Value	$ 1,499	$ 3,491

Note 6 - Marketable Securities - Balance of Held-to-maturity Debt Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Due in one year or less	$ 30,993
Due after one year through five years	51,369
Total marketable securities	$ 82,362	$ 48,397

Note 7 - Inventory - Inventory (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Raw materials	$ 10,650	$ 9,818
Work in process	16	501
Total inventory	10,666	10,319
Allowance for obsolescence	(264)	(244)
Inventory, net of allowance	$ 10,402	$ 10,075

Note 8 - Stock-based Compensation (Details Textual) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Share-based Payment Arrangement, Expense	$ 3.9	$ 3.2	$ 10.6	$ 9.7
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)			$ 45.32
ESPP [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Discount from Market Price, Offering Date			15.00%
Employee Stock Purchase Plan, Offering Period (Month)			6 months
Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent			85.00%
Share-based Payment Arrangement, Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)			10 years
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total	4.8		$ 4.8
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)			2 years 9 months 18 days
Share-based Payment Arrangement, Option [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)			4 years
Share-based Payment Arrangement, Option [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)			5 years
Restricted Stock [Member]
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total	24.3		$ 24.3
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)			2 years 7 months 6 days
Restricted Stock [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)			4 years
Restricted Stock [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)			5 years
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)			3 years
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total	$ 1.9		$ 1.9
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)			2 years 4 months 24 days
Percentage of Target Number Capable of Being Earned and Vesting, Lower Limit	0.00%		0.00%
Percentage of Target Number Capable of Being Earned and Vesting, Upper Limit	150.00%		150.00%
Long-Term Incentive Plan 2012 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)			10 years

Note 8 - Stock-based Compensation - Stock Option Activity (Details)	9 Months Ended
	Sep. 30, 2020 $ / shares shares
Options outstanding (in shares) \| shares	276,266
Options outstanding, weighted-average exercise price (in dollars per share) \| $ / shares	$ 72.38
Granted (in shares) \| shares	60,065
Granted, weighted-average exercise price (in dollars per share) \| $ / shares	$ 105.79
Exercised (in shares) \| shares	(64,932)
Exercised, weighted-average exercise price (in dollars per share) \| $ / shares	$ 57.24
Forfeited (in shares) \| shares	(37,842)
Forfeited, weighted-average exercise price (in dollars per share) \| $ / shares	$ 67.92
Options outstanding (in shares) \| shares	233,557
Options outstanding, weighted-average exercise price (in dollars per share) \| $ / shares	$ 85.89
Options exercisable (in shares) \| shares	135,837
Options exercisable, weighted-average exercise price (in dollars per share) \| $ / shares	$ 98.38

Note 8 - Stock-based Compensation - Assumptions Used in the Valuation of Options (Details) - Share-based Payment Arrangement, Option [Member]	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Expected life (years) (Year)	6 years 3 months	6 years 3 months
Expected dividend yield	0.00%	0.00%
Minimum [Member]
Risk-free interest rate	0.50%	2.35%
Expected volatility	42.40%	42.52%
Maximum [Member]
Risk-free interest rate	1.47%	2.58%
Expected volatility	43.83%	42.74%

Note 8 - Stock-based Compensation - Restricted Stock Options (Details) - Restricted Stock [Member]	9 Months Ended
	Sep. 30, 2020 $ / shares shares
Restricted stock (in shares) \| shares	314,973
Restricted stock, weighted-average grant date fair value (in dollars per share) \| $ / shares	$ 89.55
Granted (in shares) \| shares	108,179
Granted, weighted-average grant date fair value (in dollars per share) \| $ / shares	$ 117.76
Restrictions lapsed (in shares) \| shares	(100,596)
Restrictions lapsed, weighted-average grant date fair value (in dollars per share) \| $ / shares	$ 84.57
Forfeited (in shares) \| shares	(12,221)
Forfeited, weighted-average grant date fair value (in dollars per share) \| $ / shares	$ 92.61
Restricted stock (in shares) \| shares	310,335
Restricted stock, weighted-average grant date fair value (in dollars per share) \| $ / shares	$ 98.84

Note 8 - Stock-based Compensation - Performance Stock (Details) - Performance Shares [Member]	9 Months Ended
	Sep. 30, 2020 $ / shares shares
Performance stock (in shares) \| shares	9,383
Restricted stock, weighted-average grant date fair value (in dollars per share) \| $ / shares	$ 58.35
Granted (in shares) \| shares	19,956
Granted, weighted-average grant date fair value (in dollars per share) \| $ / shares	$ 118.66
Restrictions lapsed (in shares) \| shares	(7,113)
Restrictions lapsed, weighted-average grant date fair value (in dollars per share) \| $ / shares	$ 58.35
Performance change (in shares) \| shares	0
Performance change, weighted-average grant date fair value (in dollars per share) \| $ / shares	$ 0
Forfeited (in shares) \| shares	(2,270)
Forfeited, weighted-average grant date fair value (in dollars per share) \| $ / shares	$ 58.35
Performance stock (in shares) \| shares	19,956
Restricted stock, weighted-average grant date fair value (in dollars per share) \| $ / shares	$ 118.66

Note 8 - Stock-based Compensation - Assumptions Used in the Valuation of Performance Stock (Details) - Performance Shares [Member]	9 Months Ended
	Sep. 30, 2020
Risk-free interest rate	1.41%
Expected life (years) (Year)	2 years 10 months 17 days
Expected volatility	38.70%
Expected dividend yield	0.00%

Note 8 - Stock-based Compensation - Assumptions Used to Estimate the Fair Value of the ESPP (Details) - Employee Stock Purchase Plan [Member]	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Expected life (months) (Month)	6 months	6 months
Expected dividend yield	0.00%	0.00%
Minimum [Member]
Risk-free interest rate	0.17%	2.33%
Expected volatility	42.63%	37.36%
Maximum [Member]
Risk-free interest rate	1.59%	2.35%
Expected volatility	59.99%	53.57%

Note 9 - Accumulated Other Comprehensive Loss - Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Balance	$ 601,249	$ 558,113	$ 585,790	$ 541,497
Balance	625,821	564,097	625,821	564,097
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Balance	(9,634)	(8,494)	(7,018)	(8,492)
Other comprehensive income (loss) before reclassifications	3,110	(2,150)	494	(2,152)
Amounts reclassified from accumulated other comprehensive loss	0	0	0	0
Net current-period other comprehensive income (loss)	3,110	(2,150)	494	(2,152)
Balance	$ (6,524)	$ (10,644)	$ (6,524)	$ (10,644)

Amount after tax and reclassification adjustments of other comprehensive income (loss).

Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

Note 10 - Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Jun. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Income Tax Expense (Benefit), Total	$ 3,700	$ 4,709		$ 10,106	$ 13,391
Effective Income Tax Rate Reconciliation, Percent, Total	20.10%		21.90%	19.70%	21.60%
Effective Income Tax Rate Continuing Operations Increase (Decrease) During the Period	(1.80%)			1.90%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent				21.00%
Unrecognized Tax Benefits, Ending Balance	$ 4,900			$ 4,900		$ 4,600
Income Taxes Payable, CARES Act	(2,600)			(2,600)
Deferred Tax Liabilities, CARES Act	$ 2,600			$ 2,600

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

Note 11 - Segment Reporting - Revenue From Operations by Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenue	$ 107,504	$ 117,455	$ 329,187	$ 346,839
Operating Segments [Member]
Revenue	107,504	117,455	329,187	346,839
Operating Segments [Member] \| United States Segment [Member]
Revenue	85,608	92,916	262,507	271,877
Operating Segments [Member] \| Europe Segment [Member]
Revenue	18,897	20,721	56,413	62,915
Operating Segments [Member] \| Japan Segment [Member]
Revenue	$ 2,999	$ 3,818	$ 10,267	$ 12,047

Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 11: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Topic 924
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Note 11 - Segment Reporting - Income From Operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income from operations	$ 17,669	$ 21,273	$ 48,845	$ 60,294
Operating Segments [Member] \| United States Segment [Member]
Income from operations	25,164	28,109	74,602	82,367
Operating Segments [Member] \| Europe Segment [Member]
Income from operations	3,764	4,045	10,389	12,022
Operating Segments [Member] \| Corporate Unallocated and Japan Segment[Member]
Income from operations	$ (11,259)	$ (10,881)	$ (36,146)	$ (34,095)

Note 11 - Segment Reporting - Long-lived Assets by Geographic Region (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Long-lived assets	$ 281,895	$ 263,712
Operating Segments [Member]
Long-lived assets	281,895	263,712
Operating Segments [Member] \| United States Segment [Member]
Long-lived assets	219,425	210,171
Operating Segments [Member] \| Europe Segment [Member]
Long-lived assets	54,628	45,019
Operating Segments [Member] \| Japan Segment [Member]
Long-lived assets	$ 7,842	$ 8,522

Note 11 - Segment Reporting - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenue	$ 107,504	$ 117,455	$ 329,187	$ 346,839
Injection Molding (Protomold) [Member]
Revenue	53,257	55,167	165,927	165,935
CNC Machining (Firstcut) [Member]
Revenue	33,115	40,219	99,760	116,979
3D Printing (Fineline) [Member]
Revenue	16,294	15,898	46,478	45,644
Sheet Metal [Member]
Revenue	3,988	5,280	14,306	15,777
Other Products [Member]
Revenue	$ 850	$ 891	$ 2,716	$ 2,504