Note 3 - Loans Receivable - Loans by Earlier of Repricing date or Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	$ 1,628,112	$ 1,695,823
Adjustable Rate Loans [Member]
Due within one year	412,034	391,843
After one but within five years	312,494	323,885
After five but within ten years	28,341	50,004
After ten years	41	0
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	752,910	765,732
Fixed Rate Loans [Member]
Due within one year	72,026	77,600
After one but within five years	133,589	148,388
After five but within ten years	157,870	180,519
After ten years	511,717	523,584
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	$ 875,202	$ 930,091