Note 6 - Core Deposit and Customer List Intangible Assets - Changes in the Net Carrying Amount of Intangibles (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Amortization	$ (1,611)	$ (127)	$ (2,324)	$ (204)
Core Deposits [Member]
Balance at beginning of period	17,826	1,885	5,596	1,962
Intangible acquired	0	3,404	12,724	3,404
Provisional period adjustments	0	0	0	0
Amortization	(956)	(127)	(1,450)	(204)
Balance at end of period	16,870	5,162	16,870	5,162
Customer Lists [Member]
Balance at beginning of period	14,142	0	0	0
Intangible acquired	0	0	14,360	0
Provisional period adjustments	0	0	0	0
Amortization	(655)	0	(873)	0
Balance at end of period	$ 13,487	$ 0	$ 13,487	$ 0