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Equity Incentive Plans and Warrants, Stock Option Plan, Activity (Details) - 2021 Stock Option Plan [Member] - $ / shares
3 Months Ended 6 Months Ended
Jun. 30, 2023
Mar. 31, 2023
Jun. 30, 2023
Number of Options [Roll Forward]      
Beginning balance (in shares) 886,495 931,550 931,550
Granted (in shares) 153,200 5,000  
Forfeited (in shares) (20,024) (50,055)  
Ending balance (in shares) 1,019,671 886,495 1,019,671
Weighted Average Exercise Price [Abstract]      
Beginning balance (in dollars per share) $ 4.07 $ 3.97 $ 3.97
Granted (in dollars per share) 0.75 1.18  
Forfeited (in dollars per share) 3.94 1.87  
Ending balance (in dollars per share) $ 3.57 $ 4.07 $ 3.57
Options vested and exercisable [Abstract]      
Options vested and exercisable, Number of option vested (in shares) 511,472   511,472
Options vested and exercisable, Exercise price (in dollars per share) $ 3.09   $ 3.09
Estimated Fair Value Assumptions [Abstract]      
Options exercised (in shares)     0
Common stock reserved for issuance (in shares) 1,711,914   1,711,914
Employees [Member]      
Number of Options [Roll Forward]      
Granted (in shares)     85,200
Weighted Average Exercise Price [Abstract]      
Granted (in dollars per share)     $ 0.87
Options vested and exercisable [Abstract]      
Weighted-average fair values of options granted (in dollars per share)     $ 0.74
Estimated Fair Value Assumptions [Abstract]      
Expected term (in years)     6 years 3 months
Risk free interest rate     3.55%
Dividend yield     0.00%
Expected volatility     110.43%
Nonemployee [Member]      
Number of Options [Roll Forward]      
Granted (in shares)     73,000
Weighted Average Exercise Price [Abstract]      
Granted (in dollars per share)     $ 0.64
Options vested and exercisable [Abstract]      
Weighted-average fair values of options granted (in dollars per share)     $ 0.51
Estimated Fair Value Assumptions [Abstract]      
Expected term (in years)     5 years 5 months 26 days
Risk free interest rate     3.96%
Dividend yield     0.00%
Expected volatility     106.58%