Income Taxes - Significant Components of Company's Deferred Taxes (Detail) - USD ($) |
Dec. 15, 2015 |
Dec. 31, 2014 |
|---|---|---|
| Income Tax Disclosure [Abstract] | ||
| Net operating loss carryforwards | $ 35,797 | $ 29,442 |
| Research and development credit carryforwards | 2,066 | 1,715 |
| Capitalized costs | 3,977 | 3,503 |
| Capitalized research and development costs | 17,715 | 9,938 |
| Other | 903 | 422 |
| Total deferred tax assets | 60,458 | 45,020 |
| Valuation allowance | (60,458) | (45,020) |
| Net deferred tax assets | $ 0 | $ 0 |