Note 23 - Related Party Transactions - Aggregate Activity Involving Related Party Borrowers (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018
Balance at beginning of year		$ 9,490	$ 13,230
New loan additions		3,513
Advances on existing lines of credit		213	31,281
Principal repayments		(9,449)	(34,150)
Reclassifications (1)	[1]		(871)
Balance at end of year		$ 3,767	$ 9,490

[1] Represents loans that were once considered related party but are no longer considered related party, or loans that were not related party that subsequently became related party loans.