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Note 4 - Loans Receivable - Activity in the Allowance for Loan Losses (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Beginning balance | $ 8,142 | $ 9,226 | $ 8,345 | $ 8,129
Provision for credit losses - loans | 472 | 180 | 435 | 85
Loans charged off | (743) | (903) | (936) | (1,649)
Recoveries | 28 | 56 | 55 | 87
Total ending allowance balance | 7,899 | 8,559 | 7,899 | 8,559
Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |
Beginning balance |  |  |  | 1,907
Cumulative Effect, Period of Adoption, Adjusted Balance [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |
Beginning balance |  |  |  | 10,036
Real Estate Portfolio [Member] | One-to-Four Family Residential Real Estate [Member] |  |  |  |
Beginning balance | 324 | 326 | 295 | 281
Provision for credit losses - loans | (52) | (62) | (28) | (128)
Loans charged off | 0 | 0 | 0 | 0
Recoveries | 22 | 32 | 27 | 44
Total ending allowance balance | 294 | 296 | 294 | 296
Real Estate Portfolio [Member] | One-to-Four Family Residential Real Estate [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |
Beginning balance |  |  |  | 99
Real Estate Portfolio [Member] | One-to-Four Family Residential Real Estate [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |
Beginning balance |  |  |  | 380
Real Estate Portfolio [Member] | Multi-family Mortgage [Member] |  |  |  |
Beginning balance | 4,843 | 4,679 | 4,549 | 4,017
Provision for credit losses - loans | (44) | (136) | 240 | (115)
Loans charged off | 0 | 0 | 0 | 0
Recoveries | 6 | 4 | 16 | 15
Total ending allowance balance | 4,805 | 4,547 | 4,805 | 4,547
Real Estate Portfolio [Member] | Multi-family Mortgage [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |
Beginning balance |  |  |  | 630
Real Estate Portfolio [Member] | Multi-family Mortgage [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |
Beginning balance |  |  |  | 4,647
Real Estate Portfolio [Member] | Nonresidential Real Estate [Member] |  |  |  |
Beginning balance | 1,397 | 1,245 | 1,166 | 1,234
Provision for credit losses - loans | 18 | (95) | 249 | (150)
Loans charged off | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Total ending allowance balance | 1,415 | 1,150 | 1,415 | 1,150
Real Estate Portfolio [Member] | Nonresidential Real Estate [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |
Beginning balance |  |  |  | 66
Real Estate Portfolio [Member] | Nonresidential Real Estate [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |
Beginning balance |  |  |  | 1,300
Commercial Portfolio Segment [Member] |  |  |  |
Beginning balance | 1,524 | 2,943 | 2,303 | 2,548
Provision for credit losses - loans | 536 | 461 | (87) | 444
Loans charged off | (731) | (889) | (899) | (1,606)
Recoveries | 0 | 20 | 12 | 27
Total ending allowance balance | 1,329 | 2,535 | 1,329 | 2,535
Commercial Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |
Beginning balance |  |  |  | 1,122
Commercial Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |
Beginning balance |  |  |  | 3,670
Consumer Portfolio Segment [Member] |  |  |  |
Beginning balance | 54 | 33 | 32 | 49
Provision for credit losses - loans | 14 | 12 | 61 | 34
Loans charged off | (12) | (14) | (37) | (43)
Recoveries | 0 | 0 | 0 | 1
Total ending allowance balance | $ 56 | $ 31 | $ 56 | 31
Consumer Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |
Beginning balance |  |  |  | (10)
Consumer Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |
Beginning balance |  |  |  | $ 39

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