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Note 15 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]

		Year Ended December 31,
		2021				2020				2019
United States		$	14,000			$	24,768			$	32,244
Foreign			1,158				866				396
Total		$	15,158			$	25,634			$	32,640

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

		Year Ended December 31,
		2021				2020				2019
Current:
Federal		$	2,256			$	958			$	174
State			1,064				1,342				(16	)
Foreign			213				243				439
Total current income tax expense			3,533				2,543				597
Deferred:
Federal			573				4,380				3,597
State			(464	)			(386	)			561
Foreign			(7	)			47				(17	)
Total deferred income tax expense			102				4,041				4,141
Total income tax expense		$	3,635			$	6,584			$	4,738

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

		Year Ended December 31,
		2021				2020				2019
Income tax expense at federal statutory rate		$	3,183			$	5,383			$	6,854
State expense, net of federal income tax effect			547				953				1,261
Change in valuation allowance			(247	)			(181	)			(3,564	)
Nondeductible expenses			(31	)			447				(24	)
Foreign rate differential			104				78				36
Other			79				(96	)			175
Income tax expense		$	3,635			$	6,584			$	4,738
Effective income tax rate			24.0	%			25.7	%			14.5	%

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

		December 31,
		2021				2020
Deferred income tax assets:
Accrued employee benefits		$	3,125			$	3,525
Inventories			30				73
Trade receivable, net			833				958
Net operating loss carryforwards			3,099				3,231
Tax credit carryforwards			2,888				2,699
Contract assets, net			313				-
Other			984				389
			11,272				10,875
Valuation allowance			(5,899	)			(6,228	)
			5,373				4,647
Deferred income tax liabilities:
Contract assets, net			-				(1,366	)
Property and equipment			(12,937	)			(12,029	)
Intangible assets			(1,902	)			(2,737	)
Goodwill			(129	)			-
Prepaid expenses			(1,005	)			(889	)
			(15,973	)			(17,021	)
Net deferred income tax liabilities		$	(10,600	)		$	(12,374	)
Amounts are presented in the Consolidated Balance Sheets as follows:
Deferred income tax assets, included in Other assets		$	384			$	107
Deferred income taxes			(10,984	)			(12,481	)
Net deferred income tax liabilities		$	(10,600	)		$	(12,374	)

Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]

		Year Ended December 31,
		2021				2020				2019
Unrecognized income tax benefits, beginning of year		$	4,350			$	4,350			$	4,350
Increases for positions taken in prior years			16				-				-
Unrecognized income tax benefits, end of year		$	4,366			$	4,350			$	4,350

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