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10. COMMON STOCK - Dutch auction (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 12 Months Ended
--- | --- | ---
Aug. 06, 2014 | Mar. 31, 2019
Repurchase of common stock, amount |  | $ 103
Modified Dutch Auction |  |
Repurchase of common stock, shares | 3,846,153 |
Treasury stock acquired cost per share | $ 6.50 |
Repurchase of common stock, amount | $ 25,000 |

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