Stockholders' Equity Warrants Outstanding (Details)	Jun. 30, 2020 shares
Equity [Abstract]
Expiring in 2021 (in shares)	343,750
Expiring in 2022 (in shares)	0
Expiring in 2023 (in shares)	33,645,847
Expiring in 2024 (in shares)	335,452
Expiring thereafter (in shares)	19,445,701
Total (in shares)	53,770,750