Stockholders' Equity - Stock Options (Details) - USD ($)
|
12 Months Ended |
Mar. 31, 2018 |
Mar. 31, 2017 |
| Shares |
|
|
| Granted (in shares) |
0
|
|
| Additional disclosure |
|
|
| Stock-based compensation expense |
$ 586,000
|
$ 810,000
|
| Stock options |
|
|
| Shares |
|
|
| Outstanding at the beginning of the period (in shares) |
314,537
|
|
| Forfeited, cancelled or expired (in shares) |
(102,145)
|
|
| Outstanding at the end of the period (in shares) |
212,392
|
314,537
|
| Options fully vested and those expected to vest (in shares) |
212,392
|
|
| Options exercisable |
212,392
|
|
| Weighted Average Exercise Price |
|
|
| Outstanding at the beginning of the period (in dollars per share) |
$ 15.48
|
|
| Forfeited, cancelled or expired (in dollars per share) |
4.62
|
|
| Outstanding at the end of the period (in dollars per share) |
20.71
|
$ 15.48
|
| Options fully vested and those expected to vest (in dollars per share) |
20.71
|
|
| Exercisable (in dollars per share) |
$ 20.71
|
|
| Weighted Average Remaining Contractual Term (in years) |
|
|
| Outstanding at the end of the period |
2 years 9 months 18 days
|
|
| Options fully vested and those expected to vest |
2 years 9 months 18 days
|
|
| Exercisable |
2 years 9 months 18 days
|
|
| Weighted-average assumptions used to calculate estimated fair value of each stock option |
|
|
| Risk-free interest rates (as a percent) |
|
1.30%
|
| Expected lives (in years) |
|
5 years 8 months 12 days
|
| Expected volatility (as a percent) |
|
133.90%
|
| Weighted average grant date fair value of options granted during the period (in dollars per share) |
|
$ 1.52
|
| Additional disclosure |
|
|
| Stock-based compensation expense |
$ 16,900
|
$ 20,000
|
| Total compensation cost related to unvested stock option awards |
$ 0
|
|