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Stockholders' Equity - Incentive Plans (Details)
1 Months Ended 3 Months Ended
Jan. 09, 2014
installment
shares
Jan. 31, 2022
shares
Mar. 31, 2022
USD ($)
shares
Mar. 31, 2021
USD ($)
shares
Incentive plans        
Fair value of shares vested | $     $ 10,667 $ 2,205
Authorized shares        
Increase in number of shares of common stock   3,000,000    
Maximum        
Incentive plans        
Expiration period     10 years  
2003 Stock Incentive Plan        
Incentive plans        
Period from date of termination that any vested options shall expire     60 days  
Expiration period     10 years  
Intrinsic value of options exercised | $     $ 8,668  
Cash proceeds from exercise of stock options | $     $ 4,239  
Shares issued from exercise of stock options     0 3,785
2003 Stock Incentive Plan | Upon first anniversary of start date        
Incentive plans        
Percent of shares subject to option grant that will vest     25.00%  
2003 Stock Incentive Plan | Each month after the first anniversary        
Incentive plans        
Percent of shares subject to option grant that will vest     2.083%  
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 | $     $ 5,361,718  
Period for unrecognized compensation expense related to unvested options yet has not been recognized     2 years 3 months 18 days  
Shares issued from exercise of stock options     0 0
Fair value of shares vested | $     $ 1,263,094 $ 2,269,172
Authorized shares        
Common stock authorized     9,506,767  
Shares available for future grants     1,345,998  
Increase in number of shares of common stock     2,619,622  
Number 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 | 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      
Common Stock        
Incentive plans        
Shares issued from exercise of stock options       3,785
Common Stock | 2013 Equity Incentive Plan        
Authorized shares        
Common stock authorized 1,000,000      
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 20,000,000