Income Taxes (Tables)

12 Months Ended

Dec. 31, 2019

Income Tax Disclosure [Abstract]

Schedule of Net Income (Loss) Before Income Tax Expense

Income (loss) before income tax expense was as follows (in thousands):

	Year Ended December 31,
	2019			2018		2017
Domestic	$	(14,298	)	$	10,901	$	(9,064	)
Foreign	7,533			6,637		15,759
Income (loss) before income tax	$	(6,765	)	$	17,538	$	6,695

Income Tax Provision

Income tax provision was as follows (in thousands):

	Year Ended December 31,
	2019			2018			2017
Current tax expense (benefit):
State	$	(1	)	$	9		$	—
Foreign	3,130			5,032			5,200
Current tax expense	3,129			5,041			5,200
Deferred tax expense (benefit):
Federal	4			—			—
Foreign	2,986			(1,441		)	(342		)
Deferred tax expense (benefit)	2,990			(1,441		)	(342		)
Income tax expense	$	6,119		$	3,600		$	4,858

Schedule of Effective Income Tax Rate Reconciliation

The income tax provision differs from the amount computed by applying the statutory federal income tax rate to the loss before income tax as a result of the following differences (in thousands):

	Year Ended December 31,
	2019			2018			2017
Tax computed at federal statutory rate	$	(1,347	)	$	3,683		$	2,276
State tax, net of federal tax benefit	(133		)	27			(102		)
Permanent items	(1,493		)	545			1,078
Stock compensation	(1,241		)	(497		)	—
Foreign dividends and unremitted earnings	(352		)	159			796
Foreign rate differential	(308		)	(347		)	(1,897		)
Rate change due to tax reform	125			2,819			17,176
Federal credits	(611		)	(619		)	(302		)
Tax contingencies, net of reversals	1,888			2,140			592
Other	(351		)	(1,040		)	109
Valuation allowance	9,942			(3,270		)	(14,868		)
Income tax expense	$	6,119		$	3,600		$	4,858

Schedule of Deferred Tax Assets And Deferred Tax Liabilities

The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities are as follows (in thousands):

	Year Ended December 31,
	2019			2018			2017
Deferred tax assets:
Net operating loss carryforwards	$	23,114		$	16,407		$	21,626
Research and alternative minimum tax credits	5,022			4,501			3,635
Accrued expenses and other	3,671			2,806			1,891
Inventory	3,456			4,248			2,280
Property and equipment	887			1,334			1,644
Total gross deferred tax assets	36,150			29,296			31,076
Less valuation allowance	(35,545		)	(25,603		)	(28,873		)
Total deferred tax assets	605			3,693			2,203
Deferred tax liabilities
Intangible assets	(537		)	(579		)	(396		)
Total deferred tax liabilities	(537		)	(579		)	(396		)
Net deferred tax assets	$	68		$	3,114		$	1,807

Reconciliation of Changes In Unrecognized Tax Benefit

The following table presents a reconciliation of the changes in the unrecognized tax benefit (in thousands):

Balance at December 31, 2016	$	2,050
Additions based on tax positions related to the current year	365
Additions for tax positions of prior years	99
Other	3
Balance at December 31, 2017	$	2,517
Additions based on tax positions related to the current year	3,398
Additions for tax positions of prior years	92
Reductions for tax positions of prior years	(49		)
Reductions as a result of a lapse of applicable statute of limitations	(5		)
Other	(66		)
Balance at December 31, 2018	$	5,887
Additions based on tax positions related to the current year	2,925
Additions for tax positions of prior years	2
Reductions as a result of a lapse of applicable statute of limitations	(22		)
Other	(52		)
Balance at December 31, 2019	$	8,740