Equity Incentive Plans StockBased Compensation Exercise of Options and Warrants Outstanding (Details) - Stock Option [Member] - USD ($)
6 Months Ended 12 Months Ended
Dec. 31, 2019
Jun. 30, 2019
Number of Options    
Beginning balance, outstanding 22,669,883 41,643,571
Granted 790,826 1,195,826
Exercised (909,090)
Forfeited/expired (387,165) (19,260,424)
Ending balance, outstanding 23,073,544 22,669,883
Exercisable 21,667,478  
Unvested stock options 1,406,066  
Weighted Average Exercise Price    
Weighted average exercise price, beginning balance $ 0.24 $ 0.22
Granted 0.13 0.31
Exercised 0.11
Forfeited/expired 0.70 0.21
Weighted average exercise price, ending balance 0.23 $ 0.24
Weighted average exercise price, exercisable 0.23  
Weighted average exercise price, unvested stock options $ 0.23  
Weighted Average Remaining Contractual Life (Years)    
Weighted average remaining contractual life, beginning balance 2 years 4 months 28 days 2 years 9 months 3 days
Granted 10 years 7 years 7 months 21 days
Weighted average remaining contractual life, ending balance 2 years 2 months 1 day 2 years 4 months 28 days
Weighted average remaining contractual life, Exercisable 1 year 8 months 26 days  
Weighted average remaining contractual life, Unvested stock options 8 years 9 months 3 days  
Aggregate Intrinsic Value    
Aggregate intrinsic value $ 1,340,000 $ 17,523,113