Debt and Warrants - Notes Payable (Details) - USD ($)	Mar. 31, 2019	Dec. 31, 2018
Notes payable
Convertible debt, Gross	$ 11,187,633	$ 11,294,770
Less: unamortized debt discount and net issuance costs	(37,689)	(55,600)
Net convertible debt obligation	11,149,944	11,239,170
Notes payable
Notes payable
Convertible debt, Gross	1,977,295	5,180,857
Less: unamortized debt discount and net issuance costs	(718,749)	(335,282)
Net convertible debt obligation	1,258,546	4,845,575
December 2017 note payable | Notes payable
Notes payable
Convertible debt, Gross	862,172	1,673,237
February 2018 note payable | Notes payable
Notes payable
Convertible debt, Gross	315,123	2,359,750
March 2018 note payable | Notes payable
Notes payable
Convertible debt, Gross		$ 1,147,870
March 2019 note payable | Notes payable
Notes payable
Convertible debt, Gross	$ 800,000