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ALLOWANCE FOR LOAN LOSSES - Financing Receivables, Aging of Loans (Details) - USD ($) $ in Thousands		Jun. 30, 2021	Mar. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual		$ 383	$ 395
Total Past Due and Non-accrual		1,771	812
Current		887,708	942,423
Total Loans Receivable		889,479	943,235
30 To 89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		1,388	241
90 Days and Greater Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due			176
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]
Non-accrual		177	182
Total Past Due and Non-accrual		1,420	455
Current		214,708	264,690
Total Loans Receivable	[1]	216,128	265,145
Commercial Real Estate Portfolio Segment | Commercial Business | 30 To 89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		1,243	98
Commercial Real Estate Portfolio Segment | Commercial Business | 90 Days and Greater Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due			175
Commercial Real Estate Portfolio Segment | Commercial Real Estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual		138	144
Total Past Due and Non-accrual		138	144
Current		548,809	543,323
Total Loans Receivable		548,947	543,467
Commercial Real Estate Portfolio Segment | Land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current		14,922	14,040
Total Loans Receivable		14,922	14,040
Commercial Real Estate Portfolio Segment | Multi-Family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current		44,804	45,014
Total Loans Receivable		44,804	45,014
Commercial Real Estate Portfolio Segment | Real Estate Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current		11,386	16,990
Total Loans Receivable		11,386	16,990
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual		68	69
Total Past Due and Non-accrual		213	213
Current		53,079	58,366
Total Loans Receivable		53,292	58,579
Consumer | 30 To 89 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		$ 145	143
Consumer | 90 Days and Greater Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due			$ 1
[1] SBA PPP loans totaled $55.5 million and $93.4 million at June 30, 2021 and March 31, 2021, respectively.

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