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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2020

Income Tax Disclosure [Abstract]

Provisions for Income Taxes

The provisions for income taxes are:

		2020				2019				2018
Current:
Federal		$	(1,197	)		$	(235	)		$	5,641
State			(3	)			(151	)			1,777
Foreign			2,831				2,956				2,121
Deferred:
Federal			2,177				2,867				650
State			403				1,548				(365	)
Foreign			(1,131	)			(1,783	)			(679	)
		$	3,080			$	5,202			$	9,145

Total Income Tax Expense Applying U.S. Federal Income Tax Rate

Total income tax expense differed from the amounts computed by applying the U.S. Federal income tax rate of 21.0% to income before income tax expense, as a result of the following:

		2020				2019				2018
Computed tax expense at statutory federal rates		$	3,874			$	3,993			$	7,054
Increase (decrease) in taxes resulting from:
State taxes, net of federal income tax benefit			559				1,131				1,627
Unrecognized tax benefits			(2,092	)			263				171
Bargain purchase gain on business acquisition			(978	)			—				—
Impact of the enactment of the Tax Cuts and Jobs    Act (net)			—				—				1,089
Income tax credits			(812	)			(819	)			(689	)
Foreign tax rate differential			2,145				341				(37	)
Subpart F income			—				—				14
(Gain) on equity investments			—				—				(61	)
Stock based compensation			377				366				277
Global intangible low-taxed income			—				249				—
Other			7				(322	)			(300	)
		$	3,080			$	5,202			$	9,145

Components of Income before Provision

Income before provision for income taxes and losses on equity investments are:

		2020				2019				2018
Domestic		$	11,858			$	15,465			$	26,124
Foreign			6,589				3,547				7,472
		$	18,447			$	19,012			$	33,596

Deferred Tax Assets and Liability

Temporary differences between the financial statement carrying amounts and tax bases of assets and liabilities that give rise to significant portions of the net deferred tax liability at December 31, 2020 and 2019 relate to the following:

		2020				2019
Deferred tax asset
Inventories		$	1,416			$	2,912
State income taxes			—				328
Program accrual			7,306				7,529
Vacation pay accrual			815				756
Accrued bonuses			589				599
Bad debt expense			952				627
Stock compensation			2,079				2,755
NOL carryforward			2,142				1,141
Tax credits			931				824
Lease liability			3,378				3,308
Accrued expenses			347				334
Other			967				(125	)
Deferred tax asset		$	20,922			$	20,988
Deferred tax liability
Plant and equipment, principally due to differences in            depreciation and capitalized interest		$	36,878			$	35,545
Lease asset			3,332				3,265
Prepaid expenses			1,508				1,323
Deferred tax liability		$	41,718			$	40,133
Total net deferred tax liability		$	20,796			$	19,145

Gross Unrecognized Tax Benefits

The following is a roll-forward of the Company’s total gross unrecognized tax benefits, not including interest and penalties, for the years ended December 31, 2020 and 2019 included in other liabilities, excluding current installments on the Company’s consolidated balance sheets:

		2020				2019
Balance at beginning of year		$	4,395			$	2,170
Additions for tax positions related to the current year			159				155
Additions for tax positions related to the prior years			16				27
Additions for tax positions related to acquired businesses			—				2,458
Reduction for tax positions related to the prior years			(841	)			(213	)
Effect of exchange rate changes			(507	)			(202	)
Balance at end of year		$	3,222			$	4,395

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