Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($)	Mar. 31, 2016	Dec. 31, 2015
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	150,000,000	150,000,000
Common stock, shares issued	29,311,272	28,391,072
Common stock, shares outstanding	29,311,272	28,391,072
Series D Convertible Preferred Stock [Member]
Convertible preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	1,000,000	1,000,000
Convertible preferred stock, shares issued	183,289	191,491
Convertible preferred stock, shares outstanding	183,289	191,491
Convertible preferred stock, liquidation preference	$ 1,833	$ 1,915
Series E Convertible Preferred Stock [Member]
Convertible preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	1,000,000	1,000,000
Convertible preferred stock, shares issued	33,333	33,333
Convertible preferred stock, shares outstanding	33,333	33,333
Convertible preferred stock, liquidation preference	$ 333	$ 333