ALLOWANCE FOR LOAN LOSSES - Credit Quality Indicators (Details) - USD ($) $ in Thousands		Jun. 30, 2021	Mar. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		$ 889,479	$ 943,235
Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		840,519	893,055
Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		40,342	42,493
Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		8,618	7,687
Commercial Real Estate Portfolio Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		836,187	884,656
Commercial Real Estate Portfolio Segment | Commercial Business
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	[1]	216,128	265,145
Commercial Real Estate Portfolio Segment | Commercial Business | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		215,599	264,564
Commercial Real Estate Portfolio Segment | Commercial Business | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		291	399
Commercial Real Estate Portfolio Segment | Commercial Business | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		238	182
Commercial Real Estate Portfolio Segment | Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		548,947	543,467
Commercial Real Estate Portfolio Segment | Commercial Real Estate | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		500,655	494,010
Commercial Real Estate Portfolio Segment | Commercial Real Estate | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		40,003	42,045
Commercial Real Estate Portfolio Segment | Commercial Real Estate | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		8,289	7,412
Commercial Real Estate Portfolio Segment | Land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		14,922	14,040
Commercial Real Estate Portfolio Segment | Land | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		14,922	14,040
Commercial Real Estate Portfolio Segment | Multi-Family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		44,804	45,014
Commercial Real Estate Portfolio Segment | Multi-Family | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		44,733	44,941
Commercial Real Estate Portfolio Segment | Multi-Family | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		48	49
Commercial Real Estate Portfolio Segment | Multi-Family | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		23	24
Commercial Real Estate Portfolio Segment | Real Estate Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		11,386	16,990
Commercial Real Estate Portfolio Segment | Real Estate Construction | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		11,386	16,990
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		53,292	58,579
Consumer | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		53,224	58,510
Consumer | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		$ 68	$ 69

[1] SBA PPP loans totaled $55.5 million and $93.4 million at June 30, 2021 and March 31, 2021, respectively.