Stockholders' Equity (Warrants Activity) (Details) - $ / shares |
3 Months Ended | 12 Months Ended | |
---|---|---|---|
Mar. 31, 2022 |
Dec. 31, 2021 |
Mar. 04, 2022 |
|
Runway Debt Facility | |||
Class of Warrant or Right [Line Items] | |||
Warrant exercise price (in dollars per share) | $ 0.8021 | ||
Warrants issued | 748,036 | ||
Warrants [Member] | |||
Class of Warrant or Right [Line Items] | |||
Warrants outstanding, beginning | 3,308,654 | ||
Warrants, expired | (3,000,270) | ||
Warrants granted | 748,036 | ||
Warrants outstanding, ending | 1,056,420 | 3,308,654 | |
Warrant exercise price (in dollars per share) | $ 1.54 | $ 8.02 | |
Warrants exercise price, expired (in dollars per share) | 8.50 | ||
Warrant exercise price, grants during the period (in dollars per share) | $ 0.80 | ||
Warrants outstanding, remaining contractual life | 9 years 3 days | 8 months 23 days | |
Warrants granted, remaining contractual life | 9 years 11 months 4 days |