Warrants Schedule of Warrant Liability Assumptions (Details) - Warrant
|
Dec. 31, 2019
$ / shares
|
Dec. 31, 2018
$ / shares
|
| Stock Price |
|
|
| Class of Warrant or Right [Line Items] |
|
|
| Warrants, measurement input |
2.07
|
2.32
|
| Remaining term (years) |
|
|
| Class of Warrant or Right [Line Items] |
|
|
| Remaining term (years) |
3 years 1 month 6 days
|
4 years 1 month 6 days
|
| Expected dividend yield |
|
|
| Class of Warrant or Right [Line Items] |
|
|
| Warrants, measurement input |
0
|
0
|
| Risk-free rate |
|
|
| Class of Warrant or Right [Line Items] |
|
|
| Warrants, measurement input |
0.016
|
|
| Range of annual acquisition event probability |
|
|
| Class of Warrant or Right [Line Items] |
|
|
| Warrants, measurement input |
0.200
|
|
| Minimum | Risk-free rate |
|
|
| Class of Warrant or Right [Line Items] |
|
|
| Warrants, measurement input |
0.024
|
|
| Minimum | Range of annual acquisition event probability |
|
|
| Class of Warrant or Right [Line Items] |
|
|
| Warrants, measurement input |
0.000
|
|
| Maximum | Risk-free rate |
|
|
| Class of Warrant or Right [Line Items] |
|
|
| Warrants, measurement input |
0.025
|
|
| Maximum | Range of annual acquisition event probability |
|
|
| Class of Warrant or Right [Line Items] |
|
|
| Warrants, measurement input |
0.300
|
|