Accrued Liabilities - Summary of Accrued Liabilities (Detail) - USD ($) |
Sep. 30, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Payables and Accruals [Abstract] | ||
| Accrued compensation costs | $ 1,313,904 | $ 2,107,118 |
| Accrued research and development service fees | 922,442 | 578,562 |
| Accrued professional fees | 483,686 | 168,168 |
| Accrued facilities operation expenses | 189,348 | 221,103 |
| Other accrued liabilities | 22,121 | 43,286 |
| Total accrued liabilities | $ 2,931,501 | $ 3,118,237 |
| X | ||||||||||
- Definition Accrued facilities operation expenses current. No definition available.
|
| X | ||||||||||
- Definition Accrued research and development expense current. No definition available.
|
| X | ||||||||||
- Definition Carrying value as of the balance sheet date of obligations, excluding pension and other postretirement benefits, incurred through that date and payable for perquisites provided to employees pertaining to services received from them. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Carrying value as of the balance sheet date of obligations incurred through that date and payable for professional fees, such as for legal and accounting services received. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|