Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Jun. 30, 2015	Dec. 31, 2014
Preferred Stock, par value	$ 0.001	$ 0.001
Preferred Stock, shares authorized	5,000,000	5,000,000
Common Stock, par value	$ 0.001	$ 0.001
Common Stock, shares authorized	75,000,000	75,000,000
Common Stock, shares issued	52,436,926	51,603,070
Common Stock, shares outstanding	52,421,435	51,587,579
Treasury stock, shares	15,491	15,491
Series A Non-Voting Convertible Preferred Stock [Member]
Preferred Stock, shares outstanding	2,093,155	2,139,000