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Stockholders' Equity - Restricted common stock activity (Details) - USD ($)
12 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Non-vested, Ending balance 385,000  
Restricted Stock [Member]    
Non-vested, Beginning balance 311,535 416,619
Granted Number of shares 110,817 170,245
Vested, Number of shares (230,497) (275,329)
Non-vested, Ending balance 191,855 311,535
Non-vested, Beginning balance $ 412,383 $ 360,160
Granted, Fair Value 322,875 355,417
Vested, Fair Value (340,961) (303,194)
Non-vested, Ending balance $ 394,297 $ 412,383
Non-vested, Beginning Balance Weighted Average Grant Date Fair Value $ 1.66 $ 1.08
Granted Weighted Average Grant Date Fair Value 2.91 2.09
Vested Weighted Average Grant Date Fair Value 1.56 1.05
Non-vested, Ending Balance Weighted Average Grant Date Fair Value $ 2.51 $ 1.66