Note 16 - Fair Value - Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021		Jan. 01, 2021
Debt securities available for sale	$ 300,349	$ 76,292	[1]	$ 83,358	[2]
Interest receivable	9,279	7,900	[1]	$ 9,052	[3]
Derivative assets	199	0
Derivative liabilities	0	837
Reported Value Measurement [Member]
Cash and cash equivalents	170,846	677,439
Debt securities available for sale	300,349	76,292
Equity securities	55	55
Loans held for investment, net of allowance	2,369,641	2,137,711
Interest receivable	9,279	7,900
Deferred compensation assets	5,142	5,245
Derivative assets	199
Securities sold under agreements to repurchase	1,874	1,536
Interest payable	159	314
Deferred compensation liabilities	5,142	5,245
Derivative liabilities		837
Reported Value Measurement [Member] | Bank Time Deposits [Member]
Deposits fair value	283,330	354,863
Estimate of Fair Value Measurement [Member]
Cash and cash equivalents	170,846	677,439
Debt securities available for sale	300,349	76,292
Equity securities	55	55
Loans held for investment, net of allowance	2,215,243	2,108,513
Interest receivable	9,279	7,900
Deferred compensation assets	5,142	5,245
Derivative assets	199
Securities sold under agreements to repurchase	1,874	1,536
Interest payable	159	314
Deferred compensation liabilities	5,142	5,245
Derivative liabilities		837
Estimate of Fair Value Measurement [Member] | Bank Time Deposits [Member]
Deposits fair value	281,744	352,000
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member]
Cash and cash equivalents	170,846	677,439
Debt securities available for sale	0	0
Equity securities	0	0
Loans held for investment, net of allowance	0	0
Interest receivable	0	0
Deferred compensation assets	5,142	5,245
Derivative assets	0
Securities sold under agreements to repurchase	0	0
Interest payable	0	0
Deferred compensation liabilities	5,142	5,245
Derivative liabilities		0
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member] | Bank Time Deposits [Member]
Deposits fair value	0	0
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member]
Cash and cash equivalents	0	0
Debt securities available for sale	300,349	76,292
Equity securities	55	55
Loans held for investment, net of allowance	0	0
Interest receivable	9,279	7,900
Deferred compensation assets	0	0
Derivative assets	199
Securities sold under agreements to repurchase	1,874	1,536
Interest payable	159	314
Deferred compensation liabilities	0	0
Derivative liabilities		837
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | Bank Time Deposits [Member]
Deposits fair value	281,744	352,000
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member]
Cash and cash equivalents	0	0
Debt securities available for sale	0	0
Equity securities	0	0
Loans held for investment, net of allowance	2,215,243	2,108,513
Interest receivable	0	0
Deferred compensation assets	0	0
Derivative assets	0
Securities sold under agreements to repurchase	0	0
Interest payable	0	0
Deferred compensation liabilities	0	0
Derivative liabilities		0
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member] | Bank Time Deposits [Member]
Deposits fair value	$ 0	$ 0

[1] Derived from audited financial statements

[2] Per our analysis no ACL was necessary for investment securities available for sale.

[3] Accrued interest receivable from acquired credit impaired loans of $57 thousand was reclassed to other assets and was offset by the reclass of the grossed up credit discount on acquired credit impaired loans of $57 thousand that was moved to the ACL for the purchased credit deteriorated loans.