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BORROWINGS (Details Textual) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Debt Instrument [Line Items] |  |  |
Subordinated Debt | $ 49,885 | $ 49,791 |
Interest Expense, Long-term Debt | 4,600 | $ 4,500 | $ 5,400
Federal Home Loan Bank Advances Weighted Average Interest Rate inclusive of Swaps |  | 2.05% |
Total Long-Term Borrowings | 112,740 | $ 126,707 |
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged | 2,700,000 | 2,300,000 |
Parent Company [Member] | Subordinated Debentures [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Subordinated Debt | 50,000 | 50,000 |
Capital Trust V Preferred Securities Due in 2037 [Member] | Junior Subordinated Debt [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Total Long-Term Borrowings | $ 51,514 | $ 51,512 |
Capital Trust V Preferred Securities Due in 2037 [Member] | Junior Subordinated Debt [Member] | LIBOR [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Fixed rate | 6.25% |  |
Debt Instrument, interest rate, stated rate inclusive of interest rate swap - expired | 1.48% |  |
Subordinated Debentures Due in November 2019 [Member] [Domain] | Subordinated Debentures [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Fixed rate |  | 4.75% |
Central Bancorp Capital Trust I Securities Due in 2034 [Member] | Junior Subordinated Debt [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Total Long-Term Borrowings | $ 5,258 | $ 5,258 |
Debt Instrument, interest rate, stated rate inclusive of interest rate swap - expired | 7.21% |  |
Central Bancorp Capital Trust I Securities Due in 2034 [Member] | Junior Subordinated Debt [Member] | LIBOR [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument, interest rate, stated rate inclusive of interest rate swap - expired | 2.44% |  |
Single issuer trust preferred securities issued by banks [Member] | Junior Subordinated Debt [Member] | LIBOR [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt Instrument, interest rate, stated rate inclusive of interest rate swap - expired | 4.77% |  |
Line of Credit [Member] | Long-term Debt [Member] | Long-term Debt [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Long-term Debt |  | 14,100 |
Federal Home Loan Bank Advances [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Federal home loan bank unused remaining available borrowing capacity | $ 1,800,000 | $ 1,600,000 |

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