Note 12 - Income Taxes - Income Tax Provisions (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Federal:
Federal tax provision, current	$ 2,952	$ 3,660
Federal tax provision, deferred	1,797	1,087
Total federal tax provision	4,749	4,747
State and Local:
State and local tax provision, current	(199)	385
State and local tax provision, deferred	704	483
Total state and local tax provision	505	868
Total income tax provision	$ 5,254	$ 5,615