Annual report pursuant to Section 13 and 15(d)

Shareholders' Equity and Capital Stock - warrants activity (Details)

v3.10.0.1
Shareholders' Equity and Capital Stock - warrants activity (Details) - $ / shares
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2016
Sep. 25, 2018
Class of Warrant or Right      
Outstanding Beginning Balance, Warrants 5,844,567 8,224,112  
Granted, Warrants 13,062,878    
Expired, Warrants (5,844,567) (2,379,545)  
Outstanding Ending Balance, Warrants 13,062,878 5,844,567  
Outstanding Beginning Balance, Number of shares to be issued upon exercise 5,844,567 8,224,112  
Granted, Number of shares to be issued upon exercise 6,531,439    
Expired, Number of shares to be issued upon exercise (5,844,567) (2,379,545)  
Ending Balance, Numeber of shares to be issued upon exercise 6,531,439 5,844,567  
Outstanding Beginning Balance, Weighted-average exercise price $ 0.97 $ 1.71  
Granted, Weighted-average exercise price 1.00    
Expired, Weighted-average exercise price 0.97 (1.34)  
Outstanding Ending Balance, Weighted-average exercise price $ 1.00 $ 1.02  
Warrants      
Class of Warrant or Right      
Number of common shares for warrants to purchase     6,097,561