Note 11 - Income Taxes (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Income Tax Expense (Benefit)	$ 162	$ 207	$ 406	$ 870
Effective Income Tax Rate Reconciliation, Percent			23.40%	28.80%
Deferred Tax Assets, Net	$ 7,100		$ 7,100		$ 7,800