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SHAREHOLDERS' EQUITY AND REGULATORY CAPITAL REQUIREMENTS - Compliance with Regulatory Capital Requirements under Banking Regulations (Details) $ in Thousands | Mar. 31, 2022 USD ($) | Mar. 31, 2021 USD ($)
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Shareholders Equity And Regulatory Capital Requirements [Abstract] |  |
Total capital to risk weighted assets actual amount | $ 168,486 | $ 151,555
Total capital to risk weighted assets actual ratio | 16.38 | 17.35
Total capital to risk weighted assets for capital adequacy purposes amount | $ 82,305 | $ 69,879
Total capital to risk weighted assets for capital adequacy purposes ratio | 8.0 | 8.0
Total capital to risk weighted assets for capital adequacy purposes well capitalized under prompt corrective action amount | $ 102,881 | $ 87,349
Total capital to risk weighted assets for capital adequacy purposes well capitalized under prompt corrective action ratio | 10.0 | 10.0
Tier 1 to risk weighted assets actual amount | $ 155,601 | $ 140,529
Tier 1 to risk weighted assets actual ratio | 15.12 | 16.09
Tier 1 to risk weighted assets for capital adequacy purposes amount | $ 61,728 | $ 52,409
Tier 1to risk weighted assets for capital adequacy purposes ratio | 6.0 | 6.0
Tier 1 to risk weighted assets well capitalized under prompt corrective action amount | $ 82,305 | $ 69,879
Tier 1 to risk weighted assets well capitalized under prompt corrective action ratio | 8.0 | 8.0
Common equity Tier 1 capital to risk weighted assets actual amount | $ 155,601 | $ 140,529
Common equity Tier 1 capital to risk weighted assets actual ratio | 15.12 | 16.09
Common equity Tier 1 to risk weighted assets for capital adequacy purposes amount | $ 46,296 | $ 39,307
Common equity Tier 1 to risk weighted assets for capital adequacy purposes ratio | 4.5 | 4.5
Common equity Tier 1 to risk weighted assets well capitalized under prompt corrective action amount | $ 66,872 | $ 56,777
Common equity Tier 1 to risk weighted assets well capitalized under prompt corrective action ratio | 6.5 | 6.5
Tier 1 capital leverage to average tangible assets actual amount | $ 155,601 | $ 140,529
Tier 1 capital leverage to average tangible assets actual ratio | 9.19 | 9.63
Tier 1 capital leverage to average tangible assets for capital adequacy purposes amount | $ 67,763 | $ 58,344
Tier 1 capital leverage to average tangible assets for capital adequacy purposes ratio | 4.0 | 4.0
Tier 1 capital leverage to average tangible assets well capitalized under prompt corrective action amount | $ 84,704 | $ 72,930
Tier 1 capital leverage to average tangible assets well capitalized under prompt corrective action ratio | 5.0 | 5.0

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