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FAIR VALUE OF FINANCIAL INSTRUMENTS (Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Fair value | $ 271,169 | $ 240,888
Amount of transfers of assets measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2 | 0 | 0
Amount of transfers of assets measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1 | 0 | 0
Fair value assets measured at fair value on a non-recurring basis | 0 | 0
Carrying Amount | Residential mortgage-backed securities | Fair Value, Measurements, Recurring [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Fair value | 194,688 | 177,263
Carrying Amount | Commercial mortgage-backed securities issued by U.S. government sponsored entities | Fair Value, Measurements, Recurring [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Fair value | 33,492 | 32,472
Carrying Amount | U.S. Government agency securities | Fair Value, Measurements, Recurring [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Fair value | 37,916 | 25,207
Carrying Amount | CRA mutual fund | Fair Value, Measurements, Recurring [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Fair value | 2,313 | 2,224
Fair Value, Inputs, Level 1 | CRA mutual fund | Fair Value, Measurements, Recurring [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Fair value | 2,313 | 2,224
Fair Value, Inputs, Level 2 | Residential mortgage-backed securities | Fair Value, Measurements, Recurring [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Fair value | 194,688 | 177,263
Fair Value, Inputs, Level 2 | Commercial mortgage-backed securities issued by U.S. government sponsored entities | Fair Value, Measurements, Recurring [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Fair value | 33,492 | 32,472
Fair Value, Inputs, Level 2 | U.S. Government agency securities | Fair Value, Measurements, Recurring [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Fair value | 37,916 | 25,207
Fair Value, Inputs, Level 2 | CRA mutual fund | Fair Value, Measurements, Recurring [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Fair value |  | $ 0
Interest Rate Cap [Member] | Carrying Amount | Fair Value, Measurements, Recurring [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Derivative assets - interest rate cap | 770 |
Interest Rate Cap [Member] | Fair Value, Inputs, Level 2 | Fair Value, Measurements, Recurring [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Fair value | $ 770 |

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- Definition Amount of investment in debt security measured at amortized cost (held-to-maturity) and investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(6)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details
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