Net Income (Loss) Per Share (Details Textual) - shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Non-employees [Member]
Net Income (Loss) Per Share (Textual)
Warrants to purchase shares of common stock	1,155,059
Non-Director [Member]
Net Income (Loss) Per Share (Textual)
Warrants to purchase shares of common stock	22,364
RSUs [Member]
Net Income (Loss) Per Share (Textual)
Warrants to purchase shares of common stock	86,250
Stock options [Member]
Net Income (Loss) Per Share (Textual)
Warrants to purchase shares of common stock		938,392
Warrants [Member]
Net Income (Loss) Per Share (Textual)
Warrants to purchase shares of common stock		86,250