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STOCKHOLDERS' EQUITY - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 3 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Jul. 14, 2020 | Mar. 31, 2019 | Sep. 30, 2019 | May 13, 2019 | May 14, 2018
Subsidiary, Sale of Stock |  |  |  |  |
Treasury Stock Acquired, Average Cost Per Share |  |  | $ 3.29 | $ 3.20 |
Stock Repurchased During Period, Value |  | $ 171 | $ 200 | $ 1,800 |
Underwritten public offering |  |  |  |  |
Subsidiary, Sale of Stock |  |  |  |  |
Number of common shares issued | 2,500,000 |  |  |  |
Offering price per share | $ 22.00 |  |  |  |
Number of common shares sold | 1,250,000 |  |  |  |
Thomas Sandgaard | Selling stockholder |  |  |  |  |
Subsidiary, Sale of Stock |  |  |  |  |
Percentage of ownership help | 100.00% |  |  |  |
Selling stockholder | Underwritten public offering |  |  |  |  |
Subsidiary, Sale of Stock |  |  |  |  |
Number of common shares sold | 1,250,000 |  |  |  |
Common Stock [Member] |  |  |  |  |
Subsidiary, Sale of Stock |  |  |  |  |
Stock Repurchase Program Additional Authorized Amount |  |  |  |  | $ 2,000
Stock Repurchased During Period, Shares |  | 52,000 | 52,000 | 576,129 |

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