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Condensed Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Share price of common stock issued |  | $ 2.00
Common stock for options exercise, 3.80 per share issue | $ 3.80 |
Common stock for options exercise, 3.10 per share issue | 3.10 |
Common stock for options exercise, 2.93 per share issue | 2.93 |
Common stock for options exercise, 1.90 per share issue | 1.90 | 1.90
Common stock for options exercise, 1.85 per share issue | 1.85 |
Common stock for options exercise, 1.21 per share issue | 1.21 |
Common stock for options exercise, 0.98 per share issue | 0.98 |
Common stock for options exercise, 0.89 per share issue | 0.89 | 0.89
Common stock for options exercise, 1.00 per share issue |  | 1.00
Common stock for options exercise, 0.72 per share issue |  | 0.72
Common stock for warrants exercise, price per share | 1.80 |
Share price of shares issued in secondary offering (in dollars per share) |  | 2.00
Common stock for services 1.93 per share | 1.93 |
Common stock for services 2.33 per share | 2.33 | 2.33
Common stock for services 1.03 per share |  | $ 1.03
At The Market Facility (ATM) |  |
Share price of common stock issued | $ 5.03 |

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