Note 8 - Core Deposit and Customer List Intangible Assets - Changes in the Net Carrying Amount of Intangibles (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Amortized to expense	$ (5,544)	$ (770)	$ (323)
Core Deposits [Member]
Balance at beginning of period	5,596	1,962	2,285
Additions from acquisitions	12,724	3,404	0
Provisional period adjustments	0	999	0
Amortized to expense	(3,362)	(769)	(323)
Balance at end of period	14,958	5,596	$ 1,962
Customer Lists [Member]
Balance at beginning of period	0
Additions from acquisitions	14,360
Provisional period adjustments	0
Amortized to expense	(2,182)
Balance at end of period	10,032	$ 0
Disposition of LFA	$ (2,146)