STOCKHOLDERS' EQUITY (Preferred Stock Series B) (Details) $ / shares in Units, $ in Millions	Jan. 06, 2016	Mar. 05, 2014 USD ($) $ / shares shares	Mar. 31, 2017 $ / shares	Dec. 31, 2016 $ / shares	Jan. 24, 2013 $ / shares shares
Class of Stock [Line Items]
Preferred stock, par value (in dollars per share)			$ 0.01	$ 0.01
Series B preferred stock
Class of Stock [Line Items]
Conversion ratio	1
Preferred Stock | Series B preferred stock
Class of Stock [Line Items]
Conversion ratio	1
Third Security LLC and affiliates
Class of Stock [Line Items]
Common stock warrant, exercise price (in dollars per share)		$ 11.73			$ 12.96
Common stock warrant, common stock called (in shares) | shares		1,212,665			1,097,600
Third Security LLC and affiliates | Preferred Stock | Series B preferred stock
Class of Stock [Line Items]
Private placement, net (in shares) | shares		1,443,297
Preferred stock, par value (in dollars per share)		$ 0.01
Share price (in dollars per share)		$ 4.85
Private placement, net | $		$ 7.0
Conversion ratio		1
Third Security LLC and affiliates | Preferred Stock | Series B preferred stock
Class of Stock [Line Items]
Conversion ratio		1