Note 13 - Revenue from Contracts with Customers - Non-interest Income Segregated by Revenue Streams (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Non-interest income	$ 4,131	$ 3,333	$ 8,948	$ 11,127
Non-interest income (out-of-scope of Topic 606)	1,611	3,984	6,014	14,145
Total non-interest income	5,742	7,317	14,962	25,272
Deposit Account [Member]
Non-interest income	3,668	3,283	10,243	10,503
Other Non-interest Income From Customers [Member]
Non-interest income	$ 463	$ 50	$ (1,295)	$ 624