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Stockholders' Equity - Incentive Plans (Details)
1 Months Ended 3 Months Ended
Jan. 09, 2014
installment
shares
Jan. 31, 2022
USD ($)
Mar. 31, 2023
USD ($)
shares
Mar. 31, 2022
USD ($)
shares
Incentive plans        
Fair value of shares vested | $     $ 181,032 $ 10,667
Maximum        
Incentive plans        
Expiration period     10 years  
2013 Equity Incentive Plan        
Incentive plans        
Period from date of termination that any vested options shall expire 90 days      
Expiration period 10 years      
Unrecognized compensation expense related to unvested options | $     $ 6,064,322  
Period for unrecognized compensation expense related to unvested options yet has not been recognized     3 years 2 months 12 days  
Intrinsic value of options exercised | $     $ 23,760  
Cash proceeds from exercise of stock options | $     $ 33,768  
Shares issued from exercise of stock options | shares     16,800 0
Fair value of shares vested | $     $ 704,311 $ 1,263,094
Authorized shares        
Common stock authorized | shares       9,506,767
Shares available for future grants | shares       1,345,998
Increase in number of shares of common stock | shares       2,619,622
Maximum percentage of shares of common stock issued and outstanding on the immediately preceding fiscal year, or such lesser number of shares as determined by the board of directors or the compensation committee     4.00%  
2013 Equity Incentive Plan | Stock options vesting based on performance        
Incentive plans        
Maximum fair value of option excluded from the unrecognized compensation expense | $     $ 825,353  
2013 Equity Incentive Plan | Stock options vesting based on performance | Non-executive employees        
Incentive plans        
Maximum fair value of option excluded from the unrecognized compensation expense | $   $ 113,520    
2013 Equity Incentive Plan | Upon first anniversary of start date        
Incentive plans        
Percent of shares subject to option grant that will vest 25.00%      
2013 Equity Incentive Plan | Each month after the first anniversary        
Incentive plans        
Number of monthly installments | installment 36      
2013 Equity Incentive Plan | Vesting upon FDA Approval | Stock options vesting based on performance | Non-executive employees        
Incentive plans        
Percent of shares subject to option grant that will vest   50.00%    
2013 Equity Incentive Plan | Vesting upon First Commercial Sale | Stock options vesting based on performance | Non-executive employees        
Incentive plans        
Percent of shares subject to option grant that will vest   50.00%    
Common Stock | 2013 Equity Incentive Plan        
Authorized shares        
Common stock authorized | shares 1,000,000   11,681,878  
Shares available for future grants | shares     2,206,376  
Automatic increase in number of shares reserved for issuance as a percentage of the total common stock outstanding at the end of the prior year 3.00%      
Maximum number of shares that may be issued pursuant to exercise of incentive stock | shares 20,000,000