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STOCK PLANS AND STOCK-BASED COMPENSATION - Additional information (Details) - USD ($) | 3 Months Ended |
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jul. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of issuance of common stock |  |  | 1,800,000
Total intrinsic value of stock options exercised |  | $ 17,000 |
Stock options exercised (in shares) | 0 | 5,000 |
Stock options |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of stock options granted | 0 | 0 |
Unrecognized compensation expense | $ 0 |  |
Maximum term of stock options granted | 10 years |  |
Stock based Compensation Expense | $ 0 | $ 0 |
Stock options | Minimum |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Vesting period | 0 years |  |
Stock options | Maximum |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Vesting period | 5 years |  |
Restricted stock |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Unrecognized compensation expense | $ 293,000 | $ 252,000 |
Cancelled |  | (7,913) |
Weighted Average Market Price |  | $ 8.35 |
Stock based Compensation Expense | $ 55,000 | $ 29,000 |
Restricted stock | Weighted average |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Vesting period | 1 year 4 months 17 days | 1 year 5 months 4 days |
Performance Based |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Cancelled |  | (7,913) |
Weighted Average Market Price |  | $ 8.35 |
Trust Company | Stock options |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of stock options granted | 0 | 0 |
Unrecognized compensation expense | $ 0 |  |
Trust Company | Stock options | President and Chief Executive Officer |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of stock options outstanding | 0 | 1,000 |
Stock options exercised (in shares) | 500 | 0 |
Stock based Compensation Expense | $ 0 | $ 11,000 |

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