Income Taxes - Income Tax Provisions (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Note 10 - Income Taxes - Income Tax Provisions (Details)
Federal tax provision, current	$ 4,626	$ 3,578	$ 11,290	$ 9,354
Federal tax provision, deferred	(1,267)	(1,121)	(2,635)	(1,973)
Total federal tax provision	3,359	2,457	8,655	7,381
State and local tax provision, current	1,491	1,345	2,975	2,518
State and local tax provision, deferred	(361)	(1,266)	(1,539)	(1,804)
Total state and local tax provision	1,130	79	1,436	714
Total income tax provision	$ 4,489	$ 2,536	$ 10,091	$ 8,095

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