Note 12 - Subordinated Notes (Details) - USD ($) $ in Thousands			12 Months Ended
	Aug. 18, 2022	Apr. 01, 2022	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Subordinated Borrowing [Line Items]
Total Subordinated Debentures			$ 232,662	$ 113,850
Proceeds from subordinated notes		$ 20,000	100,000		$ 50,000
Conversion Amount	$ 43,250
Redemption price percentage		100.00%
Debt issuance costs			(2,338)	(1,150)
Interest Rate Period One [Member]
Subordinated Borrowing [Line Items]
Fixed rate		5.25%
Subordinated debenture dated 9/14/20 [Member]
Subordinated Borrowing [Line Items]
Total Subordinated Debentures			$ 50,000	$ 50,000
Interest Rate			5.125%	5.125%
Subordinated debenture dated 2/1/19 [Member]
Subordinated Borrowing [Line Items]
Total Subordinated Debentures			$ 65,000	$ 65,000
Interest Rate			5.375%	5.375%
Subordinated debenture dated 7/29/20
Subordinated Borrowing [Line Items]
Total Subordinated Debentures			$ 20,000
Interest Rate			5.25%
Subordinated debenture dated 8/18/22 [Member]
Subordinated Borrowing [Line Items]
Total Subordinated Debentures			$ 55,000
Interest Rate			5.95%
Subordinated debenture dated 8/18/22
Subordinated Borrowing [Line Items]
Total Subordinated Debentures			$ 45,000
Interest Rate			5.50%
Revolving line of credit
Subordinated Borrowing [Line Items]
Basis points			3.00%
Outstanding amount line of credit			$ 0
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Subordinated Borrowing [Line Items]
Basis points		5.19%
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Interest Rate Period Two [Member]
Subordinated Borrowing [Line Items]
Debt Instrument, Description of Variable Rate Basis		SOFR
Subordinated debenture mature on September 1 2037
Subordinated Borrowing [Line Items]
Proceeds from subordinated notes	$ 55,000
Redemption price percentage	100.00%
Subordinated debenture mature on September 1 2037 | Interest Rate Period One [Member]
Subordinated Borrowing [Line Items]
Fixed rate	5.95%
Subordinated debenture mature on September 1 2037 | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Interest Rate Period Two [Member]
Subordinated Borrowing [Line Items]
Debt Instrument, Description of Variable Rate Basis	SOFR
Basis points	3.00%
Subordinated debenture mature on September 1 2032
Subordinated Borrowing [Line Items]
Proceeds from subordinated notes	$ 45,000
Redemption price percentage	100.00%
Subordinated debenture mature on September 1 2032 | Interest Rate Period One [Member]
Subordinated Borrowing [Line Items]
Fixed rate	5.50%
Subordinated debenture mature on September 1 2032 | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Interest Rate Period Two [Member]
Subordinated Borrowing [Line Items]
Debt Instrument, Description of Variable Rate Basis	SOFR
Basis points	2.79%