Net and Comprehensive Loss Per Share Attributable to Common Stockholders - Schedule of Computation of Basic and Diluted Net and Comprehensive Loss Per Share (Detail) - USD ($) |
3 Months Ended | |
|---|---|---|
Mar. 31, 2020 |
Mar. 31, 2019 |
|
| Earnings Per Share [Abstract] | ||
| Net and comprehensive loss attributable to common stockholders | $ (3,918,663) | $ (8,492,825) |
| Weighted average common shares used in computing net and comprehensive loss per share attributable to common stockholder, basic and diluted | 40,588,004 | 40,588,004 |
| Net and comprehensive loss per share attributable to common stockholder, basic and diluted | $ (0.10) | $ (0.21) |