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STOCKHOLDERS' EQUITY - Stock Based Compensation - RSUs (Details) - USD ($) |  | 3 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Jun. 30, 2023 | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Jun. 30, 2022
Restricted stock units |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |
Number of shares granted |  | 85,250 | 85,350 | 85,250 | 85,350 |  |  |  |
Number of shares vested | 74,988 |  |  | 74,988 | 64,488 |  |  |  |
Number of shares forfeited | 38 |  |  | 38 | 10,538 |  |  |  |
Number of shares outstanding | 166,050 | 251,300 | 241,076 | 251,300 | 241,076 | 241,076 | 230,752 |  | 155,726
Performance cycle |  |  |  | 3 years |  |  |  |  |
Restricted stock units | Vesting Date: June 30, 2026 |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |
Number of shares granted |  |  |  | 85,250 |  |  |  |  |
Restricted stock units | Vesting Date: June 30, 2025 |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |
Number of shares granted |  |  |  |  |  | 85,350 |  |  |
Restricted stock units | Vesting Date: June 30, 2024 |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |
Number of shares granted |  |  |  |  |  |  | 80,700 |  |
Restricted stock units | Vesting Date: June 30, 2023 |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |
Number of shares granted |  |  |  |  |  |  |  | 75,026 |
Restricted stock units | Awards granted in 2023 |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |
Number of shares outstanding |  | 85,250 |  | 85,250 |  |  |  |  |
Aggregate fair value of the shares granted |  | $ 979,000 |  | $ 979,000 |  |  |  |  |
Restricted stock units | Awards granted in 2022 |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |
Number of shares outstanding |  | 85,350 |  | 85,350 |  |  |  |  |
Aggregate fair value of the shares granted |  | $ 1,400,000 |  | $ 1,400,000 |  |  |  |  |
Restricted stock units | Awards granted in 2021 |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |
Number of shares outstanding |  | 80,700 |  | 80,700 |  |  |  |  |
Aggregate fair value of the shares granted |  | $ 1,822,000 |  | $ 1,822,000 |  |  |  |  |
Restricted stock units | Years granted: 2021 - 2022 |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |
Performance cycle |  |  |  | 3 years |  |  |  |  |
Accrual for dividend equivalent rights |  | $ 385,000 |  | $ 385,000 |  | $ 210,000 |  |  |
ROC Awards | Awards granted in 2020 |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |
Weight |  |  |  | 50.00% | 50.00% |  |  |  |
ROC Awards | Awards granted in 2020 | Minimum |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |
Average of annual ROC |  |  |  | 7.00% | 7.00% |  |  |  |
ROC Awards | Awards granted in 2020 | Maximum |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |
Average of annual ROC |  |  |  | 9.75% | 9.75% |  |  |  |
ROC Awards | Years granted: 2021 - 2022 |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |
Weight |  |  |  | 50.00% | 50.00% |  |  |  |
ROC Awards | Years granted: 2021 - 2022 | Minimum |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |
Average of annual ROC |  |  |  | 6.00% | 6.00% |  |  |  |
ROC Awards | Years granted: 2021 - 2022 | Maximum |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |
Average of annual ROC |  |  |  | 8.75% | 8.75% |  |  |  |
TSR awards |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |
Service period |  |  |  | 3 years |  |  |  |  |
Valuation assumptions |  |  |  |  |  |  |  |  |
Expected life |  |  |  | 3 years |  |  |  |  |
Dividend rate |  |  |  | 8.72% |  |  |  |  |
Risk-free interest rate minimum |  |  |  | 4.42% |  |  |  |  |
Risk-free interest rate maximum |  |  |  | 5.28% |  |  |  |  |
Expected price volatility minimum |  |  |  | 28.69% |  |  |  |  |
Expected price volatility maximum |  |  |  | 30.05% |  |  |  |  |
TSR awards | Awards granted in 2020 |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |
Weight |  |  |  | 50.00% | 50.00% |  |  |  |
TSR awards | Awards granted in 2020 | Minimum |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |
Average of annual TSR |  |  |  | 7.00% | 7.00% |  |  |  |
TSR awards | Awards granted in 2020 | Maximum |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |
Average of annual TSR |  |  |  | 12.00% | 12.00% |  |  |  |
TSR awards | Years granted: 2021 - 2022 |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |
Weight |  |  |  | 50.00% | 50.00% |  |  |  |
TSR awards | Years granted: 2021 - 2022 | Minimum |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |
Average of annual TSR |  |  |  | 6.00% | 6.00% |  |  |  |
TSR awards | Years granted: 2021 - 2022 | Maximum |  |  |  |  |  |  |  |  |
STOCKHOLDERS' EQUITY |  |  |  |  |  |  |  |  |
Average of annual TSR |  |  |  | 11.00% | 11.00% |  |  |  |

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- Definition The estimated measure of the maximum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. + References No definition available. + Details
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