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COMMITMENTS AND CONTINGENCIES - Narrative (Details) - USD ($) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Mar. 31, 2023
Gain Contingencies [Line Items] |  |  |  |  |
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] | Other assets | Other assets | Other assets | Other assets |
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration] | Other liabilities | Other liabilities | Other liabilities | Other liabilities |
Lease expense | $ 63,100 | $ 63,100 | $ 126,100 | $ 126,100 |
Operating lease asset | 1,800,000 |  | 1,800,000 |  | $ 1,800,000
Operating lease liability | $ 2,700,000 |  | $ 2,700,000 |  | $ 2,800,000
Remaining lease term | 9 years |  | 9 years |  |
Discount rate | 7.70% |  | 7.70% |  |
Letters of credit issued and outstanding |  |  |  |  |
Gain Contingencies [Line Items] |  |  |  |  |
Expiring letters of credit | $ 900,000 |  | $ 900,000 |  |
February 2023 | Letters of credit issued and outstanding |  |  |  |  |
Gain Contingencies [Line Items] |  |  |  |  |
Expiring letters of credit | 400,000 |  | 400,000 |  |
April 2023 | Letters of credit issued and outstanding |  |  |  |  |
Gain Contingencies [Line Items] |  |  |  |  |
Expiring letters of credit | 200,000 |  | 200,000 |  |
August 2023 | Letters of credit issued and outstanding |  |  |  |  |
Gain Contingencies [Line Items] |  |  |  |  |
Expiring letters of credit | $ 300,000 |  | $ 300,000 |  |

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