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FAIR VALUE - Carrying Amounts and Estimated Fair Values of Other Financial Instruments (Details) - USD ($) | Sep. 30, 2018 | Dec. 31, 2017
--- | --- | ---
Financial assets: |  |
Cash and due from financial institutions | $ 31,831,000 | $ 27,966,000
Interest-earning deposits in other financial institutions | 82,081,000 | 2,763,000
Securities available for sale | 246,473,000 | 293,091,000
Securities held to maturity | 4,190,000 | 3,776,000
Loans, net and loans held for sale | 1,301,003,000 | 1,290,663,000
Accrued interest receivable | 3,884,000 | 3,758,000
Financial liabilities: |  |
Securities sold under agreements to repurchase | 0 | 10,000,000
FHLBNY overnight advances | 0 | 57,700,000
FHLBNY term advances | 0 | 2,000,000
Recurring |  |
Financial assets: |  |
Equity investments | 1,153,000 | 1,192,000
Securities available for sale | 246,473,000 | 293,091,000
Derivative assets | 2,503,000 | 974,000
Financial liabilities: |  |
Derivative liabilities | 2,516,000 | 1,049,000
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Financial assets: |  |
Cash and due from financial institutions | 31,831,000 | 27,966,000
Interest-earning deposits in other financial institutions | 82,081,000 | 2,763,000
Equity investments | 1,153,000 | 1,192,000
Securities available for sale | 0 | 0
Securities held to maturity | 0 | 0
FHLBNY and FRBNY stock | 0 | 0
Loans, net and loans held for sale | 0 | 0
Loans held for sale |  | 0
Accrued interest receivable | 17,000 | 1,000
Derivative assets | 0 | 0
Financial liabilities: |  |
Demand, savings, and insured money market accounts | 1,431,096,000 | 1,349,084,000
Time deposits | 0 | 0
Securities sold under agreements to repurchase |  | 0
FHLBNY overnight advances |  | 0
FHLBNY term advances |  | 0
Accrued interest payable | 29,000 | 24,000
Derivative liabilities | 0 | 0
Recurring | 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 | 246,473,000 | 293,091,000
Securities held to maturity | 2,067,000 | 1,830,000
FHLBNY and FRBNY stock | 0 | 0
Loans, net and loans held for sale | 0 | 0
Loans held for sale |  | 542,000
Accrued interest receivable | 867,000 | 867,000
Derivative assets | 2,503,000 | 974,000
Financial liabilities: |  |
Demand, savings, and insured money market accounts | 0 | 0
Time deposits | 145,401,000 | 118,598,000
Securities sold under agreements to repurchase |  | 10,058,000
FHLBNY overnight advances |  | 57,700,000
FHLBNY term advances |  | 2,001,000
Accrued interest payable | 147,000 | 124,000
Derivative liabilities | 2,503,000 | 974,000
Recurring | 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 | 2,123,000 | 1,946,000
FHLBNY and FRBNY stock | 0 | 0
Loans, net and loans held for sale | 1,283,057,000 | 1,289,584,000
Loans held for sale |  | 0
Accrued interest receivable | 3,884,000 | 3,774,000
Derivative assets | 0 | 0
Financial liabilities: |  |
Demand, savings, and insured money market accounts | 0 | 0
Time deposits | 0 | 0
Securities sold under agreements to repurchase |  | 0
FHLBNY overnight advances |  | 0
FHLBNY term advances |  | 0
Accrued interest payable | 0 | 0
Derivative liabilities | 13,000 | 75,000
Recurring | Carrying Amount |  |
Financial assets: |  |
Cash and due from financial institutions | 31,831,000 | 27,966,000
Interest-earning deposits in other financial institutions | 82,081,000 | 2,763,000
Equity investments | 1,153,000 | 1,192,000
Securities available for sale | 246,473,000 | 293,091,000
Securities held to maturity | 4,203,000 | 3,781,000
FHLBNY and FRBNY stock | 3,138,000 | 5,784,000
Loans, net and loans held for sale | 1,302,718,000 | 1,291,205,000
Loans held for sale |  | 542,000
Accrued interest receivable | 4,768,000 | 4,642,000
Derivative assets | 2,503,000 | 974,000
Financial liabilities: |  |
Demand, savings, and insured money market accounts | 1,431,096,000 | 1,349,084,000
Time deposits | 144,901,000 | 118,362,000
Securities sold under agreements to repurchase |  | 10,000,000
FHLBNY overnight advances |  | 57,700,000
FHLBNY term advances |  | 2,000,000
Accrued interest payable | 176,000 | 148,000
Derivative liabilities | 2,516,000 | 1,049,000
Recurring | Estimated Fair Value |  |
Financial assets: |  |
Cash and due from financial institutions | 31,831,000 | 27,966,000
Interest-earning deposits in other financial institutions | 82,081,000 | 2,763,000
Equity investments | 1,153,000 | 1,192,000
Securities available for sale | 246,473,000 | 293,091,000
Securities held to maturity | 4,190,000 | 3,776,000
Loans, net and loans held for sale | 1,283,057,000 | 1,289,584,000
Loans held for sale |  | 542,000
Accrued interest receivable | 4,768,000 | 4,642,000
Derivative assets | 2,503,000 | 974,000
Financial liabilities: |  |
Demand, savings, and insured money market accounts | 1,431,096,000 | 1,349,084,000
Time deposits | 145,401,000 | 118,598,000
Securities sold under agreements to repurchase |  | 10,058,000
FHLBNY overnight advances |  | 57,700,000
FHLBNY term advances |  | 2,001,000
Accrued interest payable | 176,000 | 148,000
Derivative liabilities | $ 2,516,000 | $ 1,049,000

X
- Definition 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. + References No definition available. + Details
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- Definition Federal Reserve Bank stock represents an equity interest in the Federal Reserve Bank and Federal Home Loan Bank (FHLB) stock represents an equity interest in in a FHLB. They do not have a readily determinable fair values because ownership is restricted and it lacks a market (liquidity). + References No definition available. + Details
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- Definition For banks and other depository institutions: Includes cash on hand (currency and coin), cash items in process of collection, noninterest bearing deposits due from other financial institutions (including corporate credit unions), and noninterest bearing balances with the Federal Reserve Banks, Federal Home Loan Banks and central banks. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(1)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13433-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13495-108611 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=82849420&loc=SL20226008-175313 + Details
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- Definition The current portion of Federal Home Loan Bank borrowings initially due beyond one year or beyond the normal operating cycle if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(13)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1895-112601 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)(a)(1)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition Fair value of investments in debt securities classified as held-to-maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563 + Details
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- Definition For banks and other depository institutions (including Federal Reserve Banks, if applicable): Interest-bearing deposits in other financial institutions for relatively short periods of time including, for example, certificates of deposits, which are presented separately from cash on the balance sheet. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.2) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=73530178&loc=d3e59706-112781 + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=82891408&loc=d3e4428-111522 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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