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Loans Receivable and Allowance for Loan Losses (Recorded Investment in Loans Receivable) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	$ 2,351,446	$ 2,330,018	$ 2,376,256
Deferred loan fees, net	(1,415)	(1,358)
Allowance for loan losses	(37,472)	(33,639)
Sub-total	(38,887)	(34,997)
Net Loans	2,312,559	2,295,021
Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	229,365	244,369	247,471
Commercial & Multi-family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	1,714,848	1,690,836	1,643,954
Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	181,312	155,967	111,463
Commercial Business [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	172,129	184,357	309,284
Home Equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	53,333	53,667	63,481
Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	$ 459	$ 822	$ 603

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Total deductions from gross loans

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount of deferred interest and fee income, unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of acquired loans. Excludes amounts for loans and leases covered under loss sharing agreements.

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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