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Note 8 - Borrowings (Details Textual) - USD ($) $ in Thousands | 9 Months Ended |  |  |
--- | --- | --- | --- | ---
Sep. 30, 2024 | Jun. 30, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | $ 1,719,060 |  | $ 1,723,471 | $ 1,401,278
Federal Home Loan Bank, Advances, General Debt Obligations, Amount of Available, Unused Funds | 120,900 |  |  |
Multifamily Loans [Member] | Federal Home Loan Bank Advances [Member] |  |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss | $ 452,000 |  | $ 417,000 |
Correspondent Financial Institution [Member] |  |  |  |
Long-Term Debt, Percentage Bearing Fixed Interest, Percentage Rate | 4.25% |  |  |
Long-Term Debt, Maturity Date |  | Jun. 15, 2025 |  |
Financial Institution [Member] | Line of Credit [Member] | Revolving Credit Facility [Member] |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 10,000 |  |  |
Financial Institution [Member] | Line of Credit [Member] | Revolving Credit Facility [Member] | Prime Rate [Member] |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 0.25% |  |  |
Lender One Agreement [Member] | Overnight Line Of Credit [Member] |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 30,000 |  |  |
Lender One Agreement [Member] | Overnight Line Of Credit [Member] | Fed Funds Effective Rate Overnight Index Swap Rate [Member] |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 0.50% |  |  |
Lender Two Arrangement [Member] | Overnight Line Of Credit [Member] |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 50,000 |  |  |
Lender Two Arrangement [Member] | Overnight Line Of Credit [Member] | Fed Funds Effective Rate Overnight Index Swap Rate [Member] |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 0.25% |  |  |
Lender Three Arrangement [Member] | Overnight Line Of Credit [Member] |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 25,000 |  |  |

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- Definition Amount of advances or credit lines available from the Federal Home Loan Bank (FHLB). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(13)(3)(a)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 470 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478878/942-470-45-1 + Details
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