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Note 17 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2022

Notes Tables

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

		Year Ended December 31,
		2022				2021				2020
United States		$	40,271			$	14,000			$	24,768
Foreign			1,079				1,158				866
Total		$	41,350			$	15,158			$	25,634

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

		Year Ended December 31,
		2022				2021				2020
Current:
Federal		$	8,443			$	2,256			$	958
State			1,264				1,064				1,342
Foreign			198				213				243
Total current income tax expense			9,905				3,533				2,543
Deferred:
Federal			(22	)			573				4,380
State			340				(464	)			(386	)
Foreign			(22	)			(7	)			47
Total deferred income tax expense			296				102				4,041
Total income tax expense		$	10,201			$	3,635			$	6,584

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

		Year Ended December 31,
		2022				2021				2020
Income tax expense at federal statutory rate		$	8,683			$	3,183			$	5,383
State expense, net of federal income tax effect			1,463				547				953
Change in valuation allowance			(1	)			(247	)			(181	)
Nondeductible expenses			(35	)			(31	)			447
Foreign rate differential			97				104				78
Other			(6	)			79				(96	)
Income tax expense		$	10,201			$	3,635			$	6,584
Effective income tax rate			24.7	%			24.0	%			25.7	%

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

		December 31,
		2022				2021
Deferred income tax assets:
Accrued employee benefits		$	3,840			$	3,125
Inventories			350				30
Trade receivable, net			329				833
Net operating loss carryforwards			2,944				3,099
Tax credit carryforwards			2,863				2,888
Contract assets, net			403				313
Other			1,074				984
			11,803				11,272
Valuation allowance			(6,051	)			(5,899	)
			5,752				5,373
Deferred income tax liabilities:
Property and equipment			(13,550	)			(12,937	)
Intangible assets			(1,319	)			(1,902	)
Goodwill			(606	)			(129	)
Prepaid expenses			(1,285	)			(1,005	)
			(16,760	)			(15,973	)
Net deferred income tax liabilities		$	(11,008	)		$	(10,600	)
Amounts are presented in the Consolidated Balance Sheets as follows:
Deferred income tax assets, included in Other assets		$	394			$	384
Deferred income taxes			(11,402	)			(10,984	)
Net deferred income tax liabilities		$	(11,008	)		$	(10,600	)

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

		Year Ended December 31,
		2022				2021				2020
Unrecognized income tax benefits, beginning of year		$	4,366			$	4,350			$	4,350
Increases for positions taken in prior years			106				16				-
Unrecognized income tax benefits, end of year		$	4,472			$	4,366			$	4,350

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Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years.

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