Note 2 - Investments - Schedule of Contractual Maturities (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Available-for-Sale, Amortized Cost	$ 291,317	$ 310,097
Total securities available-for-sale, fair value	269,460	288,667
Total securities held-to-maturity, amortized cost	35,122	33,501
Total securities held-to-maturity, fair value	35,183	34,396
Total securities, amortized cost	326,439	343,598
Total securities, fair value	304,643	323,063
US Government Agencies Debt Securities [Member]
Due after one year through five years, amortized cost	4,982	4,976
Due after one year through five years, fair value	4,800	4,785
Due after five years through ten years, amortized cost	15,290	15,288
Due after five years through ten years, fair value	13,232	13,342
Subtotal, amortized cost	20,272	20,264
Subtotal, fair value	18,032	18,127
Available-for-Sale, Amortized Cost	20,272	20,264
Total securities available-for-sale, fair value	18,032	18,127
Corporate Debt Securities [Member]
Due after one year through five years, amortized cost	8,000	8,000
Due after one year through five years, fair value	7,934	7,858
Due after five years through ten years, amortized cost	2,000	2,000
Due after five years through ten years, fair value	1,565	1,527
Subtotal, amortized cost	16,000	16,000
Subtotal, fair value	15,498	15,386
Due within one year, amortized cost	6,000	6,000
Due within one year, fair value	5,999	6,001
Due after ten years, amortized cost	6,624	7,357
Due after ten years, fair value	6,117	6,865
Available-for-Sale, Amortized Cost	16,000	16,000
Total securities available-for-sale, fair value	15,498	15,386
Due after one year through five years, amortized cost, held to maturity	2,000	3,000
Due after one year through five years, fair value, held to maturity	1,981	2,986
Due after five years through ten years, amortized cost, held to maturity	30,989	26,143
Due after five years through ten years, fair value, held to maturity	31,124	26,839
Due after ten years, amortized cost, held to maturity	0	2,250
Due after ten years, fair value, held to maturity	0	2,250
Total securities held-to-maturity, amortized cost	32,989	31,393
Total securities held-to-maturity, fair value	33,105	32,075
Municipal Bonds [Member]
Due after one year through five years, amortized cost	1,761	2,135
Due after one year through five years, fair value	1,659	2,137
Due after five years through ten years, amortized cost	6,133	7,080
Due after five years through ten years, fair value	5,620	6,441
Subtotal, amortized cost	79,341	81,156
Subtotal, fair value	70,120	71,405
Due after ten years, amortized cost	71,447	71,941
Due after ten years, fair value	62,841	62,827
Available-for-Sale, Amortized Cost	79,341	81,156
Total securities available-for-sale, fair value	70,120	71,405
Due after ten years, amortized cost, held to maturity	2,133	2,108
Due after ten years, fair value, held to maturity	2,078	2,321
Collateralized Mortgage-Backed Securities [Member]
Without single maturity date, amortized cost	165,956	181,849
Without single maturity date, fair value	156,758	173,567
Available-for-Sale, Amortized Cost	165,956	181,849
Total securities available-for-sale, fair value	156,758	173,567
Collateralized Mortgage-Backed Securities [Member] \| Federal National Mortgage Association (FNMA) [Member]
Without single maturity date, amortized cost	78,516	82,555
Without single maturity date, fair value	71,122	75,492
Collateralized Mortgage-Backed Securities [Member] \| Federal Home Loan Mortgage Corporation (FHLMC) [Member]
Without single maturity date, amortized cost	42,224	47,170
Without single maturity date, fair value	41,245	46,556
Collateralized Mortgage-Backed Securities [Member] \| Government National Mortgage Association (GNMA) [Member]
Without single maturity date, amortized cost	45,216	52,124
Without single maturity date, fair value	44,391	51,519
Asset-Backed Securities [Member]
Due after one year through five years, amortized cost	275	743
Due after one year through five years, fair value	269	730
Due after five years through ten years, amortized cost	2,390	2,598
Due after five years through ten years, fair value	2,212	2,458
Subtotal, amortized cost	9,748	10,828
Subtotal, fair value	9,052	10,182
Due within one year, amortized cost	459	130
Due within one year, fair value	454	129
Available-for-Sale, Amortized Cost	9,748	10,828
Total securities available-for-sale, fair value	$ 9,052	$ 10,182

Amortized cost excluding accrued interest, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity) and investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

No definition available.