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Note 9 - Income Taxes (Details Textual) - USD ($)	3 Months Ended			9 Months Ended
	Sep. 30, 2017	Mar. 31, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Income Tax Expense (Benefit)	$ 1,018,000		$ 469,000	$ 5,738,000	$ 3,438,000
Effective Income Tax Rate Reconciliation, Percent	30.90%		(36.40%)	28.00%	77.00%
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	$ 3,298,000		$ (1,288,000)	$ 20,514,000	$ 4,464,000
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount					$ 800,000
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent					18.30%
Restatement Adjustment [Member]
Income Tax Expense (Benefit)	$ 0.30	$ (1,900,000)

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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