Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Jun. 30, 2019	Dec. 31, 2018
Preferred Stock, par value	$ 0.001
Common Stock, par value	$ 0.001	$ 0.001
Common Stock, shares authorized	125,000,000	125,000,000
Common Stock, shares issued	89,535,024	75,793,725
Common Stock, shares outstanding	89,519,533	70,778,234
Treasury stock, shares	15,491	15,491
Series A Non-Voting Convertible Preferred Stock [Member]
Preferred Stock, par value	$ 0.001	$ 0.001
Preferred Stock, shares authorized	5,000,000	5,000,000
Preferred Stock, shares outstanding	2,093,155	2,093,155
Series B Non-Voting Convertible Preferred Stock [Member]
Preferred Stock, par value	$ 0.001	$ 0.001
Preferred Stock, shares authorized	5,000,000	5,000,000
Preferred Stock, shares outstanding	1,716	3,100