Quarterly report pursuant to Section 13 or 15(d)

Liquidity and Financial Condition (Details)

v3.19.2
Liquidity and Financial Condition (Details) - USD ($)
6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Mar. 31, 2019
Jan. 28, 2019
Dec. 31, 2018
Mar. 31, 2018
Dec. 31, 2017
Cash and cash equivalents $ 16,110,630 $ 1,654,034     $ 225,390   $ 41,651,965
Digital currencies 1,900,000            
Working capital 14,600,000            
Stockholders' equity (26,137,560) (20,667,244) $ 8,769,373   (4,491,012) $ (43,235,055) $ (49,627,399)
Accumulated deficit 212,006,522       $ 197,199,197    
Total investment 3,000,000            
Proceeds from the sale of stock 19,671,712          
Common Stock [Member] | H.C. Wainwright [Member]              
Maximum amount of sales shares 100,000,000            
Proceeds from the sale of stock $ 18,900,000            
Percentage of commission 3.00%            
Weighted average price $ 3.26            
Senior Secured Convertible Promissory Notes [Member] | Investors [Member]              
Debt instrument face amount $ 3,358,333     $ 3,358,333