Inventories - Current (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Mar. 31, 2018 |
Mar. 31, 2017 |
|
| Raw materials | $ 17,981 | $ 21,075 |
| Work in process | 111 | |
| Finished goods | 4,076 | 464 |
| Total | 22,168 | 21,539 |
| Less inventory reserve | (5,494) | (6,040) |
| Less non-current portion | (1,041) | (961) |
| Current portion | $ 15,633 | 14,538 |
| Weighted average age of noncurrent inventories | 1 year 6 months | |
| TA100 | ||
| Less inventory reserve | $ (500) |