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Stockholders' Equity - Additional Information (Details) - USD ($)
1 Months Ended 9 Months Ended 12 Months Ended
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2019
Sep. 30, 2019
Mar. 31, 2021
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2019
Feb. 09, 2021
Nov. 17, 2020
Feb. 11, 2020
Nov. 12, 2019
Nov. 21, 2017
Nov. 10, 2016
Weighted average remaining contractual life of all options outstanding                   5 years 5 months 12 days                
Remaining contractual life for options vested and exercisable                   4 years 11 months 15 days                
Aggregate intrinsic value of options outstanding $ 3,897,018                 $ 3,897,018                
Aggregate intrinsic value of options vested and exercisable 3,752,794                 $ 3,752,794                
Granted (in shares)                   575,348 324,000              
Fair value of vested stock options                   $ 631,335 $ 610,634              
Amount of unvested compensation related to stock options $ 340,692       $ 290,515         340,692 290,515              
Proceeds from the exercise of stock options                   $ 88,850 $ 0              
Exercise price $ 1.25       $ 1.25         $ 1.25 $ 1.25              
Number of shares from exercised warrants                   190,000 1,500,000              
Proceeds from the exercise of warrants                   $ 237,501 $ 1,875,000              
Fair value of vested restricted common stock                   $ 376,338 $ 340,961              
Balance of non-vested shares 50,000                 50,000                
Stock repurchased average price per share                   $ 2.27 $ 2.77              
Amount of repurchased shares 11,050 10,750 31,167 25,500 19,800 25,150 42,500 28,750   78,467 116,200              
Repurchase of common stock                   $ 178,012 $ 321,601              
Repurchased warrants underlying   100,000             100,000                  
Warrants repurchase value                 $ 95,000                  
Treasury Stock Acquired, Average Cost Per Share $ 2.50 $ 2.15 $ 2.21 $ 2.29 $ 2.68 $ 2.75 $ 3.00 $ 2.50   $ 2.27 $ 2.77              
Stock Repurchase Program, Remaining Authorized Repurchase Amount $ 349,263 $ 376,888 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 376,888 $ 349,263 $ 0              
The Plans                                    
Vesting period                   3 years                
Number of year(s) cliff vesting period                   1 year                
Term number of years                   10 years                
2007 Plan                                    
Number of shares that may be issued pursuant to awards granted 0                 0                
2017 Plan                                    
Number of shares that may be issued pursuant to awards granted 1,100,021                 1,100,021             1,874,513  
Common Stock                                    
Granted (in shares)                   158,609 161,698              
Fair value of vested stock options                   $ 0 $ 0              
Number of shares available from stock options                   274,520 263,755              
Proceeds from the exercise of stock options                   $ 88,850                
Number of shares of restricted common stock issued                   195,810 110,817              
Fair value of vested restricted common stock                   $ 195 $ 111              
Amount of repurchased shares                   78,467 116,200              
Repurchase of common stock                   $ 78 $ 115              
Warrant                                    
Intrinsic value of warrant $ 83,500                 $ 83,500                
Employee                                    
Granted (in shares)                   575,348                
Fair value of vested stock options                   $ 686,461                
Employees And Directors                                    
Granted (in shares)                     324,000              
Fair value of stock options granted                     $ 488,080              
Restricted common stock                                    
Vesting period                   3 years 3 years              
Number of year(s) cliff vesting period                   1 year 1 year              
Number of shares of restricted common stock issued                   195,810 110,817 2,166,549            
Fair value of vested restricted common stock                   $ 463,994 $ 322,875 $ 2,198,240            
Amount recognized as expense related to stock issuance                       $ 1,785,857            
Balance of non-vested shares 245,252       191,855         245,252 191,855 311,535            
Fair value of restricted common stock                   $ 376,338 $ 340,961              
Non-vested stock $ 481,953       $ 394,297         $ 481,953 $ 394,297 $ 412,383            
Unvested Options                                    
Granted (in shares)                   305,348 74,000              
Employee stock options                                    
Amount of repurchased shares                   243,750                
Repurchase of common stock                   $ 213,313                
Minimum                                    
Number of shares that may be issued pursuant to awards granted                                   5,000,000
Minimum | 2017 Plan                                    
Number of shares that may be issued pursuant to awards granted                           2,374,513   1,874,513    
Minimum | Restricted common stock                                    
Stock repurchased average price per share                   $ 2.13 $ 2.75              
Maximum                                    
Number of shares that may be issued pursuant to awards granted                                   7,000,000
Amount of stock authorized for repurchase                         $ 400,000   $ 400,000      
Share price                         $ 4.00   $ 4.00      
Maximum | 2017 Plan                                    
Number of shares that may be issued pursuant to awards granted                           3,374,513   2,374,513    
Maximum | Restricted common stock                                    
Stock repurchased average price per share                   $ 2.49 $ 3.50