Note 13 - Income Taxes - Income Tax Provisions (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Federal:
Federal tax provision, current	$ 3,578	$ 2,899	$ 9,354	$ 9,064
Federal tax provision, deferred	(1,121)	(592)	(1,973)	(839)
Total federal tax provision	2,457	2,307	7,381	8,225
State and Local:
State and local tax provision, current	1,345	33	2,518	1,722
State and local tax provision, deferred	(1,266)	(430)	(1,804)	(598)
Total state and local tax provision	79	(397)	714	1,124
Total income tax provision	$ 2,536	$ 1,910	$ 8,095	$ 9,349