FAIR VALUE - Carrying Amounts and Estimated Fair Values of Other Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Financial Assets [Abstract]
Cash and due from financial institutions	$ 26,684	$ 28,205
Interest-bearing deposits in other financial institutions	37,862	45,957
Securities available for sale	324,293	303,402
Securities held to maturity	5,117	4,912
Loans, net	1,237,543	1,186,037
Accrued interest receivable	3,149	3,192
Financial liabilities [Abstract]
Securities sold under agreements to repurchase	11,937	27,606
FHLBNY term advances	9,038	9,093
Recurring
Financial Assets [Abstract]
Securities available for sale	324,293	303,402
Derivative assets	625	693
Financial liabilities [Abstract]
Derivative liabilities	696	761
Recurring \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial Assets [Abstract]
Cash and due from financial institutions	26,684	28,205
Interest-bearing deposits in other financial institutions	37,862	45,957
Trading assets	877	774
Securities available for sale	184	170
Securities held to maturity	0	0
FHLBNY and FRBNY stock	0	0
Loans, net	0	0
Loans held for sale	0	0
Accrued interest receivable	8	9
Derivative assets	0	0
Financial liabilities [Abstract]
Demand, savings, and insured money market accounts	1,392,234	1,312,237
Time deposits	0	0
Securities sold under agreements to repurchase	0	0
FHLBNY term advances	0	0
Accrued interest payable	19	25
Derivative liabilities	0	0
Recurring \| Significant Other Observable Inputs (Level 2)
Financial Assets [Abstract]
Cash and due from financial institutions	0	0
Interest-bearing deposits in other financial institutions	0	0
Trading assets	0	0
Securities available for sale	323,857	302,982
Securities held to maturity	1,876	981
FHLBNY and FRBNY stock	0	0
Loans, net	0	0
Loans held for sale	386	412
Accrued interest receivable	825	784
Derivative assets	625	693
Financial liabilities [Abstract]
Demand, savings, and insured money market accounts	0	0
Time deposits	133,091	144,460
Securities sold under agreements to repurchase	12,092	27,880
FHLBNY term advances	9,088	9,189
Accrued interest payable	144	185
Derivative liabilities	625	693
Recurring \| Significant Unobservable Inputs (Level 3)
Financial Assets [Abstract]
Cash and due from financial institutions	0	0
Interest-bearing deposits in other financial institutions	0	0
Trading assets	0	0
Securities available for sale	252	250
Securities held to maturity	3,241	3,931
FHLBNY and FRBNY stock	0	0
Loans, net	1,242,298	1,205,814
Loans held for sale	0	0
Accrued interest receivable	3,165	3,207
Derivative assets	0	0
Financial liabilities [Abstract]
Demand, savings, and insured money market accounts	0	0
Time deposits	0	0
Securities sold under agreements to repurchase	0	0
FHLBNY term advances	0	0
Accrued interest payable	0	0
Derivative liabilities	71	68
Recurring \| Carrying Amount
Financial Assets [Abstract]
Cash and due from financial institutions	26,684	28,205
Interest-bearing deposits in other financial institutions	37,862	45,957
Trading assets	877	774
Securities available for sale	324,293	303,402
Securities held to maturity	4,928	4,705
FHLBNY and FRBNY stock	3,764	4,041
Loans, net	1,237,543	1,186,037
Loans held for sale	386	412
Accrued interest receivable	3,998	4,000
Derivative assets	625	693
Financial liabilities [Abstract]
Demand, savings, and insured money market accounts	1,392,234	1,312,237
Time deposits	132,803	144,106
Securities sold under agreements to repurchase	11,937	27,606
FHLBNY term advances	9,038	9,093
Accrued interest payable	163	210
Derivative liabilities	696	761
Recurring \| Estimated Fair Value
Financial Assets [Abstract]
Cash and due from financial institutions	26,684	28,205
Interest-bearing deposits in other financial institutions	37,862	45,957
Trading assets	877	774
Securities available for sale	324,293	303,402
Securities held to maturity	5,117	4,912
Loans, net	1,242,298	1,205,814
Loans held for sale	386	412
Accrued interest receivable	3,998	4,000
Derivative assets	625	693
Financial liabilities [Abstract]
Demand, savings, and insured money market accounts	1,392,234	1,312,237
Time deposits	133,091	144,460
Securities sold under agreements to repurchase	12,092	27,880
FHLBNY term advances	9,088	9,189
Accrued interest payable	163	210
Derivative liabilities	$ 696	$ 761

The amount of money in accounts that may bear interest and that the depositor is entitled to withdraw at any time without prior notice. Amount of interest bearing deposits with no stated maturity, which may include passbook and statement savings accounts and money-market deposit accounts (MMDAs). Amount of deposits in accounts that offer many of the same services as checking accounts although transactions may be somewhat more limited, share some of the characteristics of a money market fund and are insured by the Federal government, also known as money market accounts.

No definition available.