FAIR VALUES - Carrying Amounts and Estimated Fair Values of Other Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Financial assets:
Cash and due from financial institutions	$ 29,309	$ 17,365
Interest-earning deposits in other financial institutions	26,560	9,616
Securities available for sale	632,589	792,026
Securities held to maturity	2,424	3,790
Loans, net and loans held for sale	1,809,789	1,497,224
Accrued interest receivable	6,548	4,133
Derivative assets	27,141	9,270
Deposits:
Time deposits	402,384
Derivative liabilities	27,196	9,498
Carrying Amount
Financial assets:
Cash and due from financial institutions	29,309	17,365
Interest-earning deposits in other financial institutions	26,560	9,616
Equity investments	2,830	2,964
Securities available for sale	632,589	792,026
Securities held to maturity	2,424	3,790
FHLBNY and FRBNY stock	8,197	4,218
Loans, net and loans held for sale	1,809,789	1,497,620
Accrued interest receivable	8,682	5,985
Derivative assets	27,141	9,711
Deposits:
Demand, savings, and insured money market accounts	1,924,843	1,959,076
Time deposits	402,384	196,357
Accrued interest payable	864	210
Derivative liabilities	27,196	9,498
Estimated Fair Value
Financial assets:
Cash and due from financial institutions	29,309	17,365
Interest-earning deposits in other financial institutions	26,560	9,616
Equity investments	2,830	2,964
Securities available for sale	632,589	792,026
Securities held to maturity	2,402	3,796
Loans, net and loans held for sale	1,757,171	1,480,967
Accrued interest receivable	8,682	5,985
Derivative assets	27,141	9,711
Deposits:
Demand, savings, and insured money market accounts	1,924,843	1,959,076
Time deposits	403,572	197,658
Accrued interest payable	864	210
Derivative liabilities	27,196	9,498
Estimated Fair Value | Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial assets:
Cash and due from financial institutions	29,309	17,365
Interest-earning deposits in other financial institutions	26,560	9,616
Equity investments	2,830	2,964
Securities available for sale	55,574	60,431
Securities held to maturity	0	0
FHLBNY and FRBNY stock	0	0
Loans, net and loans held for sale	0	0
Accrued interest receivable	132	106
Derivative assets	0	0
Deposits:
Demand, savings, and insured money market accounts	1,924,843	1,959,076
Time deposits	0	0
Accrued interest payable	66	10
Derivative liabilities	0	0
Estimated Fair Value | Significant Other Observable Inputs (Level 2)
Financial assets:
Cash and due from financial institutions	0	0
Interest-earning deposits in other financial institutions	0	0
Equity investments	0	0
Securities available for sale	577,015	731,595
Securities held to maturity	1,450	1,639
FHLBNY and FRBNY stock	0	0
Loans, net and loans held for sale	0	0
Accrued interest receivable	2,002	1,746
Derivative assets	27,141	9,711
Deposits:
Demand, savings, and insured money market accounts	0	0
Time deposits	403,572	197,658
Accrued interest payable	798	200
Derivative liabilities		9,498
Estimated Fair Value | Significant Unobservable Inputs (Level 3)
Financial assets:
Cash and due from financial institutions	0	0
Interest-earning deposits in other financial institutions	0	0
Equity investments	0	0
Securities available for sale	0	0
Securities held to maturity	952	2,157
FHLBNY and FRBNY stock	0	0
Loans, net and loans held for sale	1,757,171	1,480,967
Accrued interest receivable	6,548	4,133
Derivative assets	0	0
Deposits:
Demand, savings, and insured money market accounts	0	0
Time deposits	0	0
Accrued interest payable	$ 0	0
Derivative liabilities		$ 0