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Shareholders' Equity - (Details Textual) - USD ($) $ / shares in Units, $ in Thousands | Jan. 04, 2022 | Sep. 12, 2021 | Sep. 13, 2020 | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | --- | --- | --- | ---
Shareholders' Equity |  |  |  |  |
Common stock, par value (in dollars per share) |  |  |  | $ 0.001 | $ 0.001
Edward D. Bagley | Bridge Loan |  |  |  |  |
Shareholders' Equity |  |  |  |  |
Principal amount of loan obtained | $ 2,000,000 |  |  |  |
Bridge loan issuance date | Jul. 02, 2021 |  |  |  |
Bridge loan amended date | Sep. 11, 2021 |  |  |  |
Common Stock |  |  |  |  |
Shareholders' Equity |  |  |  |  |
Warrants and Rights Outstanding, Maturity Date |  |  |  | Mar. 15, 2027 |
Common stock shares issued |  | 3,623,189 | 2,116,050 |  |
Common stock, par value (in dollars per share) |  | $ 0.001 | $ 0.001 |  |
Offering price (Per share) |  | $ 2.76 | $ 2.4925 |  |
Proceeds from issuance of common stock, gross |  | $ 10,000 | $ 5,275 |  |
Proceeds from issuance of common stock, net of issuance costs |  | $ 9,288 | $ 4,764 |  |
Common stock shares issued for warrants exercisable |  | 3,623,189 | 1,058,025 |  |
Exercise price of warrants |  | $ 2.76 | $ 2.43 |  |
Expiry term of warrants |  |  | 5 years |  |
Common Stock | Securities Purchase Agreement | Edward D. Bagley | Private Placement |  |  |  |  |
Shareholders' Equity |  |  |  |  |
Common stock shares issued | 1,538,461 |  |  |  |
Common stock, par value (in dollars per share) | $ 0.001 |  |  |  |
Offering price (Per share) | $ 1.3 |  |  |  |

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