Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Common Stock Warrant (Details)

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Stockholders' Equity - Common Stock Warrant (Details) - Common stock warrants
9 Months Ended
Sep. 30, 2021
$ / shares
shares
Stockholders' Equity  
Number of shares of common stock issuable through warrants 747,383
Weighted-average exercise price | $ / shares $ 11.06
Outstanding, beginning balance 758,939
Issued 31,000
Expired (42,556)
Outstanding, ending balance 747,383