Summary of Significant Accounting Policies - Geographic Revenue (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Mar. 31, 2017 |
Mar. 31, 2016 |
|
| Geographic revenue information | ||
| Total Revenue | $ 77,169 | $ 85,211 |
| Total North America | ||
| Geographic revenue information | ||
| Total Revenue | 36,523 | 48,583 |
| United States | ||
| Geographic revenue information | ||
| Total Revenue | 33,746 | 36,667 |
| Mexico | ||
| Geographic revenue information | ||
| Total Revenue | 2,777 | 11,598 |
| All other North America | ||
| Geographic revenue information | ||
| Total Revenue | 318 | |
| Total Europe | ||
| Geographic revenue information | ||
| Total Revenue | 22,916 | 16,341 |
| Russia | ||
| Geographic revenue information | ||
| Total Revenue | 8,379 | 1,828 |
| All other Europe | ||
| Geographic revenue information | ||
| Total Revenue | 14,537 | 14,513 |
| Asia | ||
| Geographic revenue information | ||
| Total Revenue | 4,960 | 7,643 |
| Australia | ||
| Geographic revenue information | ||
| Total Revenue | 4,985 | 8,557 |
| All other | ||
| Geographic revenue information | ||
| Total Revenue | $ 7,785 | $ 4,087 |