Note 11 - Commitments and Contingencies - Summary of the Total Unfunded, or Off-balance Sheet, Credit Extension Commitments (Details) $ in Thousands	Mar. 31, 2024 USD ($)
Total Unfunded Commitments	$ 911,132
Commitments to Extend Credit [Member] | Revolving Home Equity And Credit Card Lines Member [Member]
Total Unfunded Commitments	116,403
Commitments to Extend Credit [Member] | Construction Loans [Member]
Total Unfunded Commitments	250,672
Commitments to Extend Credit [Member] | Other Loans [Member]
Total Unfunded Commitments	485,637
Standby Letters of Credit [Member]
Total Unfunded Commitments	$ 58,420