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SHAREHOLDERS' EQUITY AND REGULATORY CAPITAL REQUIREMENTS - Compliance with Regulatory Capital Requirements under Banking Regulations (Details) $ in Thousands | Mar. 31, 2023 USD ($) | Mar. 31, 2022 USD ($)
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SHAREHOLDERS' EQUITY AND REGULATORY CAPITAL REQUIREMENTS. |  |
Total capital to risk weighted assets actual amount | $ 180,001 | $ 168,486
Total capital to risk weighted assets actual ratio | 0.1694 | 0.1638
Total capital to risk weighted assets for capital adequacy purposes amount | $ 85,013 | $ 82,305
Total capital to risk weighted assets for capital adequacy purposes ratio | 0.080 | 0.080
Total capital to risk weighted assets for capital adequacy purposes well capitalized under prompt corrective action amount | $ 106,266 | $ 102,881
Total capital to risk weighted assets for capital adequacy purposes well capitalized under prompt corrective action ratio | 0.100 | 0.100
Tier 1 to risk weighted assets actual amount | $ 166,688 | $ 155,601
Tier 1 to risk weighted assets actual ratio | 0.1569 | 0.1512
Tier 1 to risk weighted assets for capital adequacy purposes amount | $ 63,760 | $ 61,728
Tier 1to risk weighted assets for capital adequacy purposes ratio | 0.060 | 0.060
Tier 1 to risk weighted assets well capitalized under prompt corrective action amount | $ 85,013 | $ 82,305
Tier 1 to risk weighted assets well capitalized under prompt corrective action ratio | 0.080 | 0.080
Common equity Tier 1 capital to risk weighted assets actual amount | $ 166,688 | $ 155,601
Common equity Tier 1 capital to risk weighted assets actual ratio | 0.1569 | 0.1512
Common equity Tier 1 to risk weighted assets for capital adequacy purposes amount | $ 47,820 | $ 46,296
Common equity Tier 1 to risk weighted assets for capital adequacy purposes ratio | 0.045 | 0.045
Common equity Tier 1 to risk weighted assets well capitalized under prompt corrective action amount | $ 69,073 | $ 66,872
Common equity Tier 1 to risk weighted assets well capitalized under prompt corrective action ratio | 0.065 | 0.065
Tier 1 capital leverage to average tangible assets actual amount | $ 166,688 | $ 155,601
Tier 1 capital leverage to average tangible assets actual ratio | 0.1047 | 0.0919
Tier 1 capital leverage to average tangible assets for capital adequacy purposes amount | $ 63,679 | $ 67,763
Tier 1 capital leverage to average tangible assets for capital adequacy purposes ratio | 0.040 | 0.040
Tier 1 capital leverage to average tangible assets well capitalized under prompt corrective action amount | $ 79,599 | $ 84,704
Tier 1 capital leverage to average tangible assets well capitalized under prompt corrective action ratio | 0.050 | 0.050

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