Stock-based Compensation - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Millions |
3 Months Ended |
9 Months Ended |
Sep. 30, 2020 |
Sep. 30, 2020 |
Sep. 30, 2019 |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
| Closing stock price as reported on the Nasdaq (in dollars per share) |
$ 1.51
|
$ 1.51
|
|
| Weighted average fair value of options granted (in dollars per share) |
|
$ 0.87
|
$ 0.98
|
| Unrecognized compensation cost related to options granted after adjustment for estimated forfeitures |
$ 0.7
|
$ 0.7
|
|
| Expected weighted average remaining period to recognize total unrecognized compensation cost |
|
1 year 9 months 10 days
|
|
| Minimum |
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
| Target award percentage |
0.00%
|
0.00%
|
|
| Maximum |
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
| Target award percentage |
150.00%
|
150.00%
|
|
| RSU |
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
| Expected weighted average remaining period to recognize total unrecognized compensation cost |
|
2 years 5 months 8 days
|
|
| Total unrecognized compensation cost, adjusted for estimated forfeitures for awards excluding option |
$ 1.5
|
$ 1.5
|
|
| PSU |
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
| Expected weighted average remaining period to recognize total unrecognized compensation cost |
|
3 years 9 months 29 days
|
|
| Total unrecognized compensation cost, adjusted for estimated forfeitures for awards excluding option |
$ 0.4
|
$ 0.4
|
|
| Award vesting period |
4 years
|
|
|