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Note 3 - Loans Receivable - Loans Receivable (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023 | Sep. 30, 2023 | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | --- | --- | --- | ---
Loan receivable, gross | $ 1,734,807 |  | $ 1,660,028 |  |  |  |
Derivative basis adjustment | (1,579) |  | 0 |  |  |  |
Loans receivable, allowance for credit losses | 21,970 | [1] | 17,510 | [1] | $ 16,945 | $ 17,297 | $ 16,116
Total loans receivable, net | 1,714,416 |  | 1,642,518 |  |  |  |
Real Estate Portfolio Segment [Member] |  |  |  |  |  |  |
Loan receivable, gross | 1,221,322 |  | 1,229,200 |  |  |  |
Real Estate Portfolio Segment [Member] | One-to-four Family Loan [Member] |  |  |  |  |  |  |
Loan receivable, gross | 395,792 |  | 378,432 |  |  |  |
Loans receivable, allowance for credit losses | 4,308 |  | 2,975 |  | 3,538 | 3,012 | 3,343
Real Estate Portfolio Segment [Member] | Multi-family Loan [Member] |  |  |  |  |  |  |
Loan receivable, gross | 353,813 |  | 333,094 |  |  |  |
Loans receivable, allowance for credit losses | 2,589 |  | 1,154 |  | 1,271 | 1,041 | 2,468
Real Estate Portfolio Segment [Member] | Commercial Real Estate [Member] |  |  |  |  |  |  |
Loan receivable, gross | 376,008 |  | 387,983 |  |  |  |
Loans receivable, allowance for credit losses | 2,637 |  | 3,671 |  | 2,534 | 2,924 | 4,217
Real Estate Portfolio Segment [Member] | Construction Loans [Member] |  |  |  |  |  |  |
Loan receivable, gross | 95,709 |  | 129,691 |  |  |  |
Loans receivable, allowance for credit losses | 716 |  | 1,889 |  | 2,183 | 2,535 | 2,344
Consumer Portfolio Segment [Member] |  |  |  |  |  |  |
Loan receivable, gross | 358,158 |  | 318,533 |  |  |  |
Consumer Portfolio Segment [Member] | Home Equity Loan [Member] |  |  |  |  |  |  |
Loan receivable, gross | 76,960 |  | 69,403 |  |  |  |
Loans receivable, allowance for credit losses | 1,246 |  | 1,077 |  | 1,303 | 1,125 | 549
Consumer Portfolio Segment [Member] | Automobile and Other Loan [Member] |  |  |  |  |  |  |
Loan receivable, gross | 281,198 |  | 249,130 |  |  |  |
Loans receivable, allowance for credit losses | 2,933 |  | 4,409 |  | 4,164 | 4,795 | 2,024
Commercial Portfolio Segment [Member] |  |  |  |  |  |  |
Loan receivable, gross | 155,327 |  | 112,295 |  |  |  |
Loans receivable, allowance for credit losses | $ 7,541 |  | $ 2,335 |  | $ 1,952 | $ 1,865 | $ 786
[1] | Allowance for credit losses on loans in 2023 reported using the CECL method and in 2022 reported using the incurred loss method.

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