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EQUITY COMPENSATION PLANS - Stock Options (Details) - Stock Options [Member] - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Mar. 31, 2022 | Mar. 31, 2021 | Mar. 31, 2022 | Mar. 31, 2021 | Sep. 30, 2021
Equity Compensation Plans [Abstract] |  |  |  |  |
Award vesting period |  |  | 3 years |  |
Contractual term |  |  | 10 years |  |
Compensation expenses | $ 0 | $ 0 | $ 0 | $ 0 |
Number of Options [Roll Forward] |  |  |  |  |
Outstanding, beginning of period (in shares) |  |  | 227,406 |  |
Granted (in shares) |  |  | 0 |  |
Exercised (in shares) | 0 | 0 | 0 | 0 |
Forfeited (in shares) |  |  | 0 |  |
Outstanding, end of period (in shares) | 227,406 |  | 227,406 |  | 227,406
Weighted-Average Exercise Price Per Share [Roll Forward] |  |  |  |  |
Outstanding, beginning of period (in dollars per share) |  |  | $ 9.50 |  |
Granted (in dollars per share) |  |  | 0 |  |
Exercised (in dollars per share) |  |  | 0 |  |
Forfeited (in dollars per share) |  |  | 0 |  |
Outstanding, end of period (in dollars per share) | $ 9.50 |  | $ 9.50 |  | $ 9.50
Aggregate Intrinsic Value [Abstract] |  |  |  |  |
Aggregate intrinsic value, outstanding | $ 2,325 |  | $ 2,325 |  | $ 2,043
Weighted Average Remaining Contractual Term [Abstract] |  |  |  |  |
Weighted-average remaining contractual term, outstanding |  |  | 2 years 11 months 12 days |  | 3 years 6 months 3 days

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