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Note 14 - Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Provision (benefit) at statutory rate of 35%	$ (14,470)	$ (532)	$ 11,921
State provision (benefit), net of federal tax effect	(866)	(96)	370
Federal and state tax credits	(6,684)	$ (91)	(525)
Disallowed domestic manufacturing deduction	630		(641)
Change in valuation allowance	5,210	$ 9	954
Uncertain tax positions	2,082	5	$ (7)
Goodwill impairment (nondeductible)	1,849	5,623
Nondeductible expenses	91	207	$ 345
Nontaxable adjustment to contingent consideration	103	611
Nontaxable adjustment to contingent consideration	(103)	(611)
Other	104	137	$ (59)
Income tax (benefit) expense	$ (11,951)	$ 4,651	$ 12,358
Effective tax rate	(28.90%)	305.60%	36.30%

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to Federal and State tax credits.

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