Annual report pursuant to Section 13 and 15(d)

Summary of significant accounting policies - Changes in the fair value (Details)

v3.10.0.1
Summary of significant accounting policies - Changes in the fair value (Details) - USD ($)
3 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
Mar. 31, 2017
Jun. 30, 2017
Sep. 30, 2017
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Accounting Policies [Abstract]            
Derivative Liabilities $ 1,302,543 $ 1,302,543 $ 1,302,543 $ 1,302,543 $ 1,868,439 $ 547,940
Aggregate fair value of conversion feature upon issuance of common shares       (457,228)
Change in fair value of derivative liabilities (763,885) (212,886) (283,299) (1,144,834) (3,485,801) (45,356)
Reclassification of warrants to derivative liability 30,095 9,968 6,462 643,085 2,785,655 1,823,083
Reclassification of stock options to derivative liability 8,488 7,073 4,183 25,988 134,249
Derivative Liabilities $ 577,241 $ 381,396 $ 108,742 $ 826,782 $ 1,302,543 $ 1,868,439