Financing (Details) - USD ($)				1 Months Ended		6 Months Ended
	May 07, 2018	Jul. 23, 2013	Mar. 10, 2011	May 31, 2018	Mar. 23, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Class of Stock [Line Items]
Issuance of common stock, shares						1,403,367
Number of shares of common stock issuable through warrants	4,750,000
Shares issued under offering	4,875,000					14,375,000
Proceeds from sale of common stock	$ 18,800,000			$ 4,800,000		$ 3,573,380	$ 2,461,880
Warrants, expiry period	5 years	5 years			5 years
Warrants, exercise price	$ 1.584					$ 1.584
Exercise of warrants, shares				3,054,667		3,054,667
Common stock issued for conversion of warrants	7,187,500	12,500	1,738		682,500
Fair value of common stock	$ 7,800,000					$ 4,619		$ 840
Risk free interest rate	2.78%					2.34%
Dividend	0.00%					0.00%
Volatility	124.14%
Price per share	$ 1.30	$ 125.00	$ 4.80		$ 10.00	$ 1.584
Warrants exercised						3,054,667
Warrants outstanding						4,132,833
Stock awards granted						424,592		266,884
Sales Agreement [Member]
Class of Stock [Line Items]
Total value of common stock that can be sold through Common Stock Sales Agreement						$ 3,658,000
Shares issued under offering						1,300,000
Proceeds from sale of common stock						$ 3,400,000
Sale of stock						1,403,367
Offering price per share						$ 0.0002
Common stock warrants [Member]
Class of Stock [Line Items]
Number of shares of common stock issuable through warrants	9,500,000
Public offering price	$ 1.44
Warrant [Member]
Class of Stock [Line Items]
Issuance of common stock, shares	2,437,500
Public offering price	$ 0.01
Price per share						$ 10.00
Stock awards granted						296,159
Pre funded warrants [Member]
Class of Stock [Line Items]
Public offering price	$ 1.43