Capital Stock Transactions - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands |
1 Months Ended |
3 Months Ended |
6 Months Ended |
|
|
|
Aug. 31, 2016 |
Jul. 30, 2016 |
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 28, 2016 |
Jun. 09, 2016 |
Mar. 31, 2016 |
| Class Of Stock [Line Items] |
|
|
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|
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| Series A convertible preferred stock authorized (in shares) |
|
|
2,000,000
|
|
2,000,000
|
|
|
|
2,000,000
|
| Series A Convertible Preferred Stock, par value (in usd per share) |
|
|
$ 0.0001
|
|
$ 0.0001
|
|
|
|
$ 0.0001
|
| Series A convertible preferred stock issued (in shares) |
|
|
100,000
|
|
100,000
|
|
|
|
100,000
|
| Warrants issued (shares) |
|
|
|
|
|
|
|
30,000
|
|
| Warrant exercise price (in usd per share) |
|
|
|
|
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|
$ 1.364
|
$ 1.08
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|
| Common stock issued upon exercise of options (in shares) |
|
13,826
|
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|
|
|
|
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| Fair value |
$ 364
|
|
|
|
|
|
|
|
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| Total unrecognized stock base compensation expense |
|
|
$ 6,731
|
$ 10,668
|
$ 6,731
|
$ 10,668
|
|
|
|
| Unvested stock options, weighted average period |
|
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|
|
2 years 3 months 22 days
|
2 years 4 months 13 days
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| Restricted Stock |
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| Class Of Stock [Line Items] |
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| Vesting period |
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|
1 year
|
|
|
|
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| Awarded (in shares) |
331,363
|
|
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|
331,363
|
|
|
|
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| Time Condition RSAs |
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| Class Of Stock [Line Items] |
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|
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|
|
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| Compensation expense |
|
|
86
|
$ 273
|
$ 166
|
$ 600
|
|
|
|
| Non Vested Restricted Stock |
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|
|
|
|
|
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|
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| Class Of Stock [Line Items] |
|
|
|
|
|
|
|
|
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| Awarded (in shares) |
|
|
|
|
331,363
|
|
|
|
|
| Total unrecognized stock base compensation expense |
|
|
$ 305
|
|
$ 305
|
|
|
|
|
| Unvested stock options, weighted average period |
|
|
|
|
9 months 29 days
|
|
|
|
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| Minimum | Restricted Stock |
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|
|
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|
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|
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| Class Of Stock [Line Items] |
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|
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|
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| Vesting period |
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|
|
3 months
|
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|
|
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| Maximum | Restricted Stock |
|
|
|
|
|
|
|
|
|
| Class Of Stock [Line Items] |
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|
|
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|
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| Vesting period |
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|
2 years
|
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|
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| Convertible Preferred Stock |
|
|
|
|
|
|
|
|
|
| Class Of Stock [Line Items] |
|
|
|
|
|
|
|
|
|
| Series A convertible preferred stock authorized (in shares) |
|
|
2,000,000
|
|
2,000,000
|
|
|
|
|
| Series A Convertible Preferred Stock, par value (in usd per share) |
|
|
$ 0.0001
|
|
$ 0.0001
|
|
|
|
|
| Series A convertible preferred stock issued (in shares) |
|
|
100,000
|
|
100,000
|
|
|
|
|
| Aggregate shares upon conversion (shares) |
|
|
|
|
20,000
|
|
|
|
|
| Liquidation preference ($ per share) |
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|
$ 10
|
|
$ 10
|
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| Initial Purchaser Of Warrants |
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| Class Of Stock [Line Items] |
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| Warrants issued (shares) |
|
|
|
|
|
|
250,000
|
|
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| Holder Of Notes |
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| Class Of Stock [Line Items] |
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| Warrants issued (shares) |
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|
|
|
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4,105,600
|
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