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Commitments and Contingencies (Details) - USD ($) $ in Thousands | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jul. 31, 2007 | Jun. 30, 2007 | Dec. 31, 2023 | Dec. 31, 2022
Loans and Leases Receivable, Commitments, Fixed Rates |  |  | $ 8,100 |
Loans and Leases Receivable, Commitments, Weighted Average Rate of Interest |  |  | 7.40% |
Loans and Leases Receivable, Commitments, Variable Rates |  |  | $ 479,200 |
Loans and Leases Receivable, Commitments, Variable Rates, Weighted Average Rate |  |  | 8.17% |
Loan Commitments, Expiration |  |  | 90 days |
Line of Credit, Maturity, Max |  |  | 18 months |
Purchase obligations |  |  | $ 12,548 | $ 18,900
Third-Party Vendors [Member] |  |  |  |
Purchase obligations |  |  | $ 6,500 | 6,200
Home Equity Line of Credit [Member] |  |  |  |
Line of Credit, Maturity, Max |  |  | 10 years |
Letter of Credit Pledged as Collateral [Member] |  |  |  |
Deposit Liabilities, Collateral Issued, Financial Instruments |  |  | $ 1,118,700 | $ 1,073,700
Capital Securities | Flushing Financial's Capital Trusts [Member] |  |  |  |
Proceeds from Issuance of Debt | $ 61,900 | $ 61,900 |  |

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- Definition Reflects the weighted average interest rate on commitments to advance to borrowers and lessees at interest rates that increase or decrease depending on certain facts or circumstances. + References No definition available. + Details
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- Definition Reflects the weighted average interest rate associated with agreements to provide advances to borrowers and lessees at stated interest rates. + References No definition available. + Details
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- Definition Amount of securities, mortgage loans, or other financial instruments pledged as collateral for deposits. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 942 -SubTopic 405 -Section 50 -Paragraph 1 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481047/942-405-50-1 + Details
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- Definition Reflects the amount of cash required to fully fund agreements to provide advances to borrowers and lessees at stated interest rates. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 942 -SubTopic 825 -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480981/942-825-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 942 -SubTopic 825 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480981/942-825-50-1 + Details
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- Definition Reflects the amount of cash required to fully fund agreements to provide advances to borrowers and lessees at interest rates that increase or decrease depending on certain facts or circumstances. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 942 -SubTopic 825 -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480981/942-825-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 942 -SubTopic 825 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480981/942-825-50-1 + Details
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- Definition The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 14 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-14 + Details
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