Retirement Plan - Additional Information (Detail) - USD ($) |
12 Months Ended | |
|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| Compensation And Retirement Disclosure [Abstract] | ||
| Employer matching contribution percentage | 3.00% | |
| Total matching contributions | $ 29,946 | $ 34,097 |
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of discretionary contributions made by an employer to a defined contribution plan. No definition available.
|
| X | ||||||||||
- Definition Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. No definition available.
|