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Note 15 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2016

Notes Tables

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

		Year Ended December 31,
		2016				2015				2014
Current:
Federal		$	(740	)		$	(5,076	)		$	4,336
State			(102	)			26				334
Total current income tax expense (benefit)			(842	)			(5,050	)			4,670
Deferred:
Federal			(3,541	)			(8,855	)			305
State			(373	)			1,954				(324	)
Total deferred income tax benefit			(3,914	)			(6,901	)			(19	)
		$	(4,756	)		$	(11,951	)		$	4,651

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

		Year Ended December 31,
		2016				2015				2014
Income tax benefit at federal statutory rate of 35%		$	(4,907	)		$	(14,470	)		$	(532	)
State benefit, net of federal income tax effect			(362	)			(866	)			(96	)
Federal and state income tax credits			(154	)			(6,684	)			(91	)
Disallowed domestic manufacturing deduction			-				630				-
Change in valuation allowance			1,155				5,210				9
Uncertain income tax positions			(4	)			2,082				5
Goodwill impairment (nondeductible)			-				1,849				5,623
Nondeductible expenses			63				91				207
Nontaxable adjustment to contingent consideration			(580	)			103				(611	)
Other			33				104				137
Income tax expense (benefit)		$	(4,756	)		$	(11,951	)		$	4,651
Effective income tax rate			(33.9	) %			(28.9	) %			305.6	%

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

		December 31,
		2016				2015
Deferred income tax assets:
Costs and estimated earnings in excess of billings on uncompleted contracts, net		$	1,270			$	2,888
Accrued employee benefits			5,025				5,946
Inventories			563				2,618
Trade receivable, net			199				266
Net operating loss carryforwards			15,637				7,843
Tax credit carryforwards			5,069				4,791
Other assets			1,830				2,737
Other			1,018				520
			30,611				27,609
Valuation allowance			(8,217	)			(7,057	)
			22,394				20,552
Deferred income tax liabilities:
Property and equipment			(22,380	)			(24,229	)
Intangible assets			(819	)			(980	)
Prepaid expenses			(477	)			(467	)
			(23,676	)			(25,676	)
Net deferred income tax liabilities		$	(1,282	)		$	(5,124	)

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

		Year Ended December 31,
		2016				2015				2014
Unrecognized income tax benefits, beginning of year		$	4,874			$	2,313			$	6,207
Decreases for settlements			-				-				(3,265	)
Decreases for lapse in statute of limitations			-				(1,199	)			(115	)
Decreases for positions taken in current year			-				-				(615	)
Increases for positions taken in prior years			-				3,716				101
Increases for positions taken in the current year			-				44				-
Unrecognized income tax benefits, end of year		$	4,874			$	4,874			$	2,313

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- Definition

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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