FAIR VALUE MEASUREMENTS (Fair Value, Assets Measured on Recurring Basis) (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale ("AFS"), at fair value	$ 253,348	$ 246,105
Equity securities carried at fair value through income	4,787	4,855
Residential CMOs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale ("AFS"), at fair value	275	288
Student Loan Trust ABSs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale ("AFS"), at fair value	40,480	37,439
U.S. government obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale ("AFS"), at fair value	4,444	1,500
Municipal bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale ("AFS"), at fair value	37,121	44,478
CRA investment fund
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities carried at fair value through income	4,787	4,855
Other equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities carried at fair value through income	207	207
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale ("AFS"), at fair value	253,348	246,105
Fair Value, Measurements, Recurring | MBS
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale ("AFS"), at fair value	38,380	34,953
Fair Value, Measurements, Recurring | CMOs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale ("AFS"), at fair value	132,648	127,447
Fair Value, Measurements, Recurring | Residential CMOs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale ("AFS"), at fair value	275	288
Fair Value, Measurements, Recurring | Student Loan Trust ABSs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale ("AFS"), at fair value	40,480	37,439
Fair Value, Measurements, Recurring | U.S. government obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale ("AFS"), at fair value	4,444	1,500
Fair Value, Measurements, Recurring | Municipal bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale ("AFS"), at fair value	37,121	44,478
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale ("AFS"), at fair value	253,348	246,105
Level 2 | CRA investment fund
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities carried at fair value through income	4,787	4,855
Level 2 | Other equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities carried at fair value through income	207	207
Level 2 | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale ("AFS"), at fair value	253,348	246,105
Level 2 | Fair Value, Measurements, Recurring | MBS
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale ("AFS"), at fair value	38,380	34,953
Level 2 | Fair Value, Measurements, Recurring | CMOs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale ("AFS"), at fair value	132,648	127,447
Level 2 | Fair Value, Measurements, Recurring | Residential CMOs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale ("AFS"), at fair value	275	288
Level 2 | Fair Value, Measurements, Recurring | Student Loan Trust ABSs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale ("AFS"), at fair value	40,480	37,439
Level 2 | Fair Value, Measurements, Recurring | U.S. government obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale ("AFS"), at fair value	4,444	1,500
Level 2 | Fair Value, Measurements, Recurring | Municipal bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale ("AFS"), at fair value	$ 37,121	$ 44,478