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Stockholders' Equity - Inducement Plan (Details)
1 Months Ended 3 Months Ended 12 Months Ended
Jan. 09, 2014
installment
shares
Jan. 31, 2022
USD ($)
shares
Jan. 31, 2020
installment
Mar. 31, 2023
USD ($)
shares
Mar. 31, 2022
USD ($)
shares
Dec. 31, 2022
shares
Dec. 31, 2021
shares
Share-based Compensation Arrangement by Share-based Payment Award              
Fair value of shares vested | $       $ 181,032 $ 10,667    
Inducement Plan              
Share-based Compensation Arrangement by Share-based Payment Award              
Period from date of termination that any vested options shall expire     90 days        
Expiration period     10 years        
Unrecognized compensation expense related to unvested options | $       $ 1,935,838      
Period for unrecognized compensation expense related to unvested options yet has not been recognized       2 years 10 months 24 days      
Aggregate intrinsic value | $       $ 149,000      
Stock options granted       250,000      
Options exercised       0 0    
Inducement Plan | Upon first anniversary of start date              
Share-based Compensation Arrangement by Share-based Payment Award              
Vesting percentage     25.00%        
Inducement Plan | Each month after the first anniversary              
Share-based Compensation Arrangement by Share-based Payment Award              
Number of monthly installments | installment     36        
2013 Equity Incentive Plan              
Share-based Compensation Arrangement by Share-based Payment Award              
Period from date of termination that any vested options shall expire 90 days            
Expiration period 10 years            
Common stock authorized         9,506,767    
Intrinsic value of options exercised | $       $ 23,760      
Cash proceeds from exercise of stock options | $       $ 33,768      
Period for unrecognized compensation expense related to unvested options yet has not been recognized       3 years 2 months 12 days      
Increase in number of shares of common stock         2,619,622    
Shares available for future grants         1,345,998    
Aggregate intrinsic value | $       $ 336,000      
Stock options granted       2,206,050      
Fair value of shares vested | $       $ 704,311 $ 1,263,094    
Options exercised       16,800 0    
2013 Equity Incentive Plan | Stock options vesting based on performance              
Share-based Compensation Arrangement by Share-based Payment Award              
Maximum fair value of option excluded from the unrecognized compensation expense | $       $ 825,353      
2013 Equity Incentive Plan | Stock options vesting based on performance | Employees              
Share-based Compensation Arrangement by Share-based Payment Award              
Stock options granted   141,900          
Maximum fair value of option excluded from the unrecognized compensation expense | $   $ 113,520          
2013 Equity Incentive Plan | Stock options vesting based on performance | Newly hired employees              
Share-based Compensation Arrangement by Share-based Payment Award              
Stock options granted           584,200 584,200
2013 Equity Incentive Plan | Upon first anniversary of start date              
Share-based Compensation Arrangement by Share-based Payment Award              
Vesting percentage 25.00%            
2013 Equity Incentive Plan | Each month after the first anniversary              
Share-based Compensation Arrangement by Share-based Payment Award              
Number of monthly installments | installment 36            
2013 Equity Incentive Plan | Vesting upon FDA Approval | Stock options vesting based on performance | Employees              
Share-based Compensation Arrangement by Share-based Payment Award              
Vesting percentage   50.00%          
2013 Equity Incentive Plan | Vesting upon First Commercial Sale | Stock options vesting based on performance | Employees              
Share-based Compensation Arrangement by Share-based Payment Award              
Vesting percentage   50.00%          
Common Stock | Inducement Plan              
Share-based Compensation Arrangement by Share-based Payment Award              
Increase in number of shares of common stock   3,000,000          
Shares available for future grants       409,508      
Common Stock | 2013 Equity Incentive Plan              
Share-based Compensation Arrangement by Share-based Payment Award              
Common stock authorized 1,000,000     11,681,878      
Shares available for future grants       2,206,376