ALLOWANCE FOR LOAN LOSSES - Credit Quality Indicators (Details) - USD ($) $ in Thousands		Sep. 30, 2021	Mar. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		$ 914,532	$ 943,235
Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		872,994	893,055
Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		31,272	42,493
Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		10,266	7,687
Commercial Real Estate Portfolio Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		843,753	884,656
Commercial Real Estate Portfolio Segment | Commercial Business
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable	[1]	206,709	265,145
Commercial Real Estate Portfolio Segment | Commercial Business | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		206,228	264,564
Commercial Real Estate Portfolio Segment | Commercial Business | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		168	399
Commercial Real Estate Portfolio Segment | Commercial Business | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		313	182
Commercial Real Estate Portfolio Segment | Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		567,043	543,467
Commercial Real Estate Portfolio Segment | Commercial Real Estate | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		526,127	494,010
Commercial Real Estate Portfolio Segment | Commercial Real Estate | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		31,061	42,045
Commercial Real Estate Portfolio Segment | Commercial Real Estate | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		9,855	7,412
Commercial Real Estate Portfolio Segment | Land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		15,925	14,040
Commercial Real Estate Portfolio Segment | Land | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		15,925	14,040
Commercial Real Estate Portfolio Segment | Multi-Family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		40,455	45,014
Commercial Real Estate Portfolio Segment | Multi-Family | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		40,404	44,941
Commercial Real Estate Portfolio Segment | Multi-Family | Special Mention
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		43	49
Commercial Real Estate Portfolio Segment | Multi-Family | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		8	24
Commercial Real Estate Portfolio Segment | Real Estate Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		13,621	16,990
Commercial Real Estate Portfolio Segment | Real Estate Construction | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		13,621	16,990
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		70,779	58,579
Consumer | Pass
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		70,689	58,510
Consumer | Substandard
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Receivable		$ 90	$ 69

[1] SBA PPP loans totaled $32.7 million and $93.4 million at September 30, 2021 and March 31, 2021, respectively.