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STOCK PLANS AND STOCK-BASED COMPENSATION - Additional information (Details) - USD ($) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | 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 |  |  | $ 238,000 | $ 118,000 |
Stock options |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Unrecognized compensation expense | $ 66,000 |  | $ 66,000 |  |
Maximum term of stock options granted |  |  | 10 years |  |
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 |  |
Stock options | President and Chief Executive Officer |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Number of stock options granted |  |  | 2,500 | 2,500 |
Stock based Compensation Expense | 11,000 | $ 11,000 | $ 22,000 | $ 22,000 |
Restricted stock |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Number of stock awards granted |  |  | 82,673 |  |
Stock based Compensation Expense | 58,000 | $ 0 | $ 227,000 | $ 0 |
Unrecognized compensation expense | $ 463,000 |  | $ 463,000 |  |
Restricted stock | Weighted average |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Vesting period |  |  | 2 years 2 months 23 days |  |

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- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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