Note 17 - Income Taxes - Components of Income Tax Expense (Benefit) from Operations (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Federal	$ 3,003	$ 2,373
State	114	124
Total current income tax expense	3,117	2,497
Federal	(26)	1,101
State	38	78
Total deferred income tax expense	12	1,179
Change in valuation allowance	13
Total income tax expense	$ 3,142	$ 3,676