Fair Value Measurements - Schedule of warrant derivative liabilities (Details)	Sep. 30, 2020 $ / shares	Dec. 31, 2019 $ / shares
Expected Life [Member] | Strome Warrants [Member]
Warrants term	2 years 8 months 12 days	3 years 5 months 12 days
Expected Life [Member] | B. Riley Warrants [Member]
Warrants term	5 years 18 days	5 years 9 months 18 days
Measurement Input, Risk Free Interest Rate [Member] | Strome Warrants [Member]
Warrants measurement input	0.16	1.62
Measurement Input, Risk Free Interest Rate [Member] | B. Riley Warrants [Member]
Warrants measurement input	0.28	1.76
Volatility Factor [Member] | Strome Warrants [Member]
Warrants measurement input	143.00	144.54
Volatility Factor [Member] | B. Riley Warrants [Member]
Warrants measurement input	137.91	127.63
Dividend Rate [Member] | Strome Warrants [Member]
Warrants measurement input	0	0
Dividend Rate [Member] | B. Riley Warrants [Member]
Warrants measurement input	0	0
Transaction Date Closing Market [Member] | Strome Warrants [Member]
Warrants measurement input	0.89	0.80
Transaction Date Closing Market [Member] | B. Riley Warrants [Member]
Warrants measurement input	0.89	0.80
Exercise Price [Member] | Strome Warrants [Member]
Warrants measurement input	0.50	0.50
Exercise Price [Member] | B. Riley Warrants [Member]
Warrants measurement input	1.00	1.00