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Note 15 - Income Taxes - Summary of Components of Income Tax Expense for Continuing Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 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)
Income tax expense (benefit)	$ (4,756)	$ (11,951)	$ 4,651

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