Net (Loss) Income Per Share - Additional Information (Detail) - shares |
Sep. 26, 2016 |
Jun. 15, 2016 |
Apr. 14, 2016 |
Dec. 31, 2016 |
Dec. 31, 2015 |
|---|---|---|---|---|---|
| Schedule of Net Income (Loss) Per Share [Line Items] | |||||
| Preferred stock issued pursuant to Private Placement | 4,630,145 | ||||
| Preferred stock issued pursuant to Subsequent Financing | 4,630,145 | ||||
| Preferred stock, shares outstanding | 0 | 0 | |||
| Public Offering [Member] | |||||
| Schedule of Net Income (Loss) Per Share [Line Items] | |||||
| Common stock shares issued | 2,250,000 |