Note 9 - Borrowings - Advances from FHLB (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Long-term advances	$ 160,000	$ 160,000
Overnight variable-rate advances	100,000	130,000
Line of credit	13,500	6,500
Subordinated debt, net	34,643	39,514
Within one year or less	$ 75,000	$ 30,000
Within one year or less, weighted average interest rate	3.92%	1.93%
After one year through two years	$ 60,000	$ 55,000
After one year through two years, weighted average interest rate	3.97%	3.86%
After two years through three years	$ 25,000	$ 50,000
After two years through three years, weighted average interest rate	4.50%	3.96%
After three years through four years	$ 0	$ 25,000
After three years through four years, weighted average interest rate	0.00%	4.50%
Long-term advances	$ 160,000	$ 160,000
Long-term advances, weighted average interest rate	4.03%	3.63%
Subordinated Debt [Member]
Maximum outstanding at any month-end	$ 39,527	$ 39,514
Monthly average outstanding	$ 35,542	$ 39,475
Annual	3.99%	4.00%
Period End	4.10%	3.99%
Interest expense during the period	$ 1,419	$ 1,578
NexBank [Member]
Maximum outstanding at any month-end	15,000	10,000
Monthly average outstanding	$ 11,192	$ 6,635
Annual	8.07%	9.41%
Period End	7.25%	8.00%
Interest expense during the period	$ 904	$ 623
Federal Home Loan Bank, Short-term, Variable-rate Advances [Member]
Maximum outstanding at any month-end	130,000	270,000
Monthly average outstanding	$ 87,500	$ 137,750
Annual	4.18%	5.38%
Period End	4.00%	4.64%
Interest expense during the period	$ 3,832	$ 6,937
Maximum outstanding at any month-end	130,000	270,000
Monthly average outstanding	$ 87,500	$ 137,750
Annual	4.18%	5.38%
Period End	4.00%	4.64%
Interest expense during the period	$ 3,832	$ 6,937
Federal Home Loan Bank, Short-term, Fixed-rate Advances [Member]
Maximum outstanding at any month-end	170,000	170,000
Monthly average outstanding	$ 167,083	$ 136,250
Annual	3.86%	3.35%
Period End	4.03%	3.63%
Interest expense during the period	$ 6,527	$ 4,455
Maximum outstanding at any month-end	170,000	170,000
Monthly average outstanding	$ 167,083	$ 136,250
Annual	3.86%	3.35%
Period End	4.03%	3.63%
Interest expense during the period	$ 6,527	$ 4,455