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Note 4 - Allowance for Credit Losses - Allowance by Impairment Methodology and Loans by Impairment Methodology (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Mar. 31, 2023 | Dec. 31, 2023
Balance | $ 11,974 | $ 7,446 | $ 7,446 | $ 7,446
Charge-offs | (414) |  | (977) | (3,993)
Recoveries | 52 |  | 62 | 418
Provision for (recovery of) credit losses on loans | 991 | 0 | 0 | 5,917
Balance | 12,603 | 8,717 | 8,717 | 11,974
Individually evaluated | 3,569 | 0 | 0 | 2,705
Collectively evaluated | 9,034 | 8,717 | 8,717 | 9,269
Loans | 972,974 | 917,967 | 917,967 | 969,430
Individually evaluated | 8,011 | 1,591 | 1,591 | 6,763
Collectively evaluated | 964,963 | 916,376 | 916,376 | 962,667
Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] |  |  |  |
Balance |  | 2,186 | 2,186 | 2,186
Real Estate 1 [Member] | Construction and Land Development [Member] |  |  |  |
Balance | 312 | 546 | 546 | 546
Charge-offs | (4) |  | 0 | 0
Recoveries | 0 |  | 0 | 0
Provision for (recovery of) credit losses on loans | 47 |  | 11 | 79
Balance | 355 | 244 | 244 | 312
Individually evaluated | 0 | 0 | 0 | 0
Collectively evaluated | 355 | 244 | 244 | 312
Loans | 53,364 | 48,610 | 48,610 | 52,680
Individually evaluated | 37 | 1,044 | 1,044 | 38
Collectively evaluated | 53,327 | 47,566 | 47,566 | 52,642
Real Estate 1 [Member] | Construction and Land Development [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] |  |  |  |
Balance |  | (313) | (313) | (313)
Real Estate 1 [Member] | Secured by Multi-family Residential Properties [Member] |  |  |  |
Balance | 3,159 | 1,108 | 1,108 | 1,108
Charge-offs | (10) |  | 0 | (59)
Recoveries | 4 |  | 5 | 47
Provision for (recovery of) credit losses on loans | (396) |  | 74 | 654
Balance | 2,757 | 2,596 | 2,596 | 3,159
Individually evaluated | 0 | 0 | 0 | 0
Collectively evaluated | 2,757 | 2,596 | 2,596 | 3,159
Loans | 347,014 | 334,302 | 334,302 | 344,369
Individually evaluated | 772 | 474 | 474 | 495
Collectively evaluated | 346,242 | 333,828 | 333,828 | 343,874
Real Estate 1 [Member] | Secured by Multi-family Residential Properties [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] |  |  |  |
Balance |  | 1,409 | 1,409 | 1,409
Real Estate 1 [Member] | Other Real Estate Loans [Member] |  |  |  |
Balance | 4,698 | 3,609 | 3,609 | 3,609
Charge-offs | 0 |  | 0 | (34)
Recoveries | 1 |  | 2 | 14
Provision for (recovery of) credit losses on loans | 225 |  | (150) | (593)
Balance | 4,924 | 5,166 | 5,166 | 4,698
Individually evaluated | 0 | 0 | 0 | 0
Collectively evaluated | 4,924 | 5,166 | 5,166 | 4,698
Loans | 445,085 | 416,001 | 416,001 | 447,272
Individually evaluated | 0 | 73 | 73 | 0
Collectively evaluated | 445,085 | 415,928 | 415,928 | 447,272
Real Estate 1 [Member] | Other Real Estate Loans [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] |  |  |  |
Balance |  | 1,702 | 1,705 | 1,702
Commercial and Industrial Loans [Member] |  |  |  |
Balance | 3,706 | 1,874 | 1,874 | 1,874
Charge-offs | (317) |  | (851) | (3,452)
Recoveries | 6 |  | 0 | 145
Provision for (recovery of) credit losses on loans | 1,098 |  | (15) | 5,526
Balance | 4,493 | 617 | 617 | 3,706
Individually evaluated | 3,569 | 0 | 0 | 2,705
Collectively evaluated | 924 | 617 | 617 | 1,001
Loans | 113,562 | 110,937 | 110,937 | 113,074
Individually evaluated | 7,202 | 0 | 0 | 6,230
Collectively evaluated | 106,360 | 110,937 | 110,937 | 106,844
Commercial and Industrial Loans [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] |  |  |  |
Balance |  | (387) | (391) | (387)
Consumer and Other Loans [Member] |  |  |  |
Balance | 99 | 309 | 309 | 309
Charge-offs | (83) |  | (126) | (448)
Recoveries | 41 |  | 55 | 212
Provision for (recovery of) credit losses on loans | 17 |  | 80 | 251
Balance | 74 | 94 | 94 | 99
Individually evaluated | 0 | 0 | 0 | 0
Collectively evaluated | 74 | 94 | 94 | 99
Loans | 13,949 | 8,117 | 8,117 | 12,035
Individually evaluated | 0 | 0 | 0 | 0
Collectively evaluated | $ 13,949 | 8,117 | 8,117 | 12,035
Consumer and Other Loans [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] |  |  |  |
Balance |  | $ (225) | $ (224) | $ (225)

X
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- Definition The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment. + References No definition available. + Details
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