Note 7 - Goodwill and Intangibles - Core Deposit Intangibles (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Balance at the beginning of period	$ 16,759	$ 9,349
Acquisition of GFED		63,541
Amortization expense	(2,938)	(2,854)	$ (2,032)
Balance at the end of the period	13,821	16,759	9,349
Net book value	13,821	16,759	9,349
Core Deposits [Member]
Balance at the beginning of period	16,759	9,349	11,381
Amortization expense	(2,938)	(2,854)	(2,032)
Balance at the end of the period	13,821	16,759	9,349
Gross carrying amount	29,519	29,519	19,255
Accumulated amortization	(15,698)	(12,760)	(9,906)
Net book value	$ 13,821	16,759	$ 9,349
Core Deposits [Member] | Guaranty Bank
Acquisition of GFED		$ 10,264