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Common Stock Warrants (Tables)
9 Months Ended
Sep. 30, 2022
Stockholders' Equity Note [Abstract]  
Schedule of outstanding warrants to purchase common stock
Issuance Date  Number of
Shares
Issuable
Upon
Exercise of
Outstanding
Warrants
   Exercise
Price
   Expiration Date
8/30/2018   3,088   $3.10   8/29/2023
9/30/2018   60,506   $3.10   9/29/2023
9/30/2018   486,486   $2.16   9/29/2023
10/17/2018   1,157   $3.10   10/16/2023
11/2/2018   964   $3.10   11/1/2023
11/9/2018   964   $3.10   11/8/2023
11/16/2018   964   $3.10   11/15/2023
11/29/2018   964   $3.10   11/28/2023
12/21/2018   964   $3.10   12/20/2023
12/27/2018   964   $3.10   12/26/2023
1/31/2019   1,930   $3.10   1/30/2024
2/7/2019   1,640   $3.10   2/6/2024
2/21/2019   1,640   $3.10   2/20/2024
3/20/2019   3,378   $3.10   3/18/2024
4/8/2019   1,930   $3.10   4/6/2024
11/19/2020   53,333   $4.10   6/30/2024
11/19/2020   8,533   $4.10   6/30/2024
1/8/2021   13,333   $4.10   6/30/2024
1/11/2021   26,666   $4.10   6/30/2024
2/13/2021   13,333   $4.10   6/30/2024
3/16/2021   10,665   $4.10   6/30/2024
3/16/2021   13,333   $4.10   6/30/2024
8/31/2021   3,519,000   $4.25   8/31/2026
8/31/2021   153,000   $4.675   8/26/2026
9/29/2021   9,450   $4.675   8/26/2026
    4,388,185