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Stockholders' Equity - Stock Options and a Summary of Activity (Details)
6 Months Ended
Jun. 16, 2023
Jun. 15, 2023
Jun. 30, 2023
$ / shares
shares
Number of Options      
Outstanding at beginning of period (in shares) | shares     47,103
Granted (in shares) | shares     11,427
Canceled/forfeited (in shares) | shares     (12,203)
Expired (in shares) | shares     (3,827)
Outstanding at end of period (in shares) | shares     42,500
Vested and expected to vest at period end (in shares) | shares     33,951
Exercisable at period end (in shares) | shares     5,786
Weighted Average Exercise Price Per Share      
Outstanding at beginning of period (USD per share) | $ / shares     $ 13.78
Granted (USD per share) | $ / shares     3.04
Canceled/forfeited (USD per share) | $ / shares     19.38
Expired (USD per share) | $ / shares     17.06
Outstanding at end of period (USD per share) | $ / shares     8.99
Vested and expected to vest at period end (USD per share) | $ / shares     9.83
Exercisable at period end (USD per share) | $ / shares     $ 23.91
Weighted Average Remaining Contractual Life (in years)      
Outstanding at end of period     9 years
Vested and expected to vest at period end     8 years 10 months 24 days
Exercisable at period end     7 years 4 months 24 days
Reverse stock split ratio 0.142857 0.142857