STOCKHOLDERS' EQUITY (Preferred Stock Series B) (Details) $ / shares in Units, $ in Thousands |
12 Months Ended | |||||||||||
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Jul. 07, 2015
$ / shares
shares
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Mar. 05, 2014
USD ($)
$ / shares
shares
|
Jan. 24, 2013
USD ($)
$ / shares
shares
|
Dec. 31, 2015
USD ($)
$ / shares
shares
|
Dec. 31, 2014
USD ($)
$ / shares
shares
|
Jun. 30, 2015
$ / shares
shares
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Feb. 27, 2015
$ / shares
shares
|
Jan. 15, 2015
$ / shares
shares
|
Oct. 22, 2014
$ / shares
shares
|
Oct. 21, 2014
$ / shares
shares
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Jan. 31, 2013
$ / shares
shares
|
Feb. 02, 2012
$ / shares
shares
|
|
Class of Stock [Line Items] | ||||||||||||
Private placement, net, shares | shares | 1,500,000 | 1,383,333 | ||||||||||
Preferred stock, par value (in usd per share) | $ 0.01 | $ 0.01 | ||||||||||
Share price (in usd per share) | $ 1.42 | $ 6.00 | $ 1.07 | |||||||||
Private placement, net | $ | $ 8,300 | $ 8,970 | $ 2,361 | |||||||||
Common stock warrant, exercise price (in usd per share) | $ 6.50 | $ 10.25 | $ 10.25 | $ 7.56 | $ 7.56 | $ 9.59 | $ 10.86 | $ 11.73 | $ 12.96 | $ 15.00 | ||
Common stock warrant, common stock called (in shares) | shares | 2,188,177 | 691,656 | 1,387,685 | 1,387,685 | 1,881,396 | 1,881,396 | 1,483,161 | 1,309,785 | 1,212,665 | 1,097,600 | 948,333 | |
Third Security LLC And Affiliates | ||||||||||||
Class of Stock [Line Items] | ||||||||||||
Common stock warrant, exercise price (in usd 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, shares | shares | 1,443,297 | |||||||||||
Preferred stock, par value (in usd per share) | $ 0.01 | |||||||||||
Share price (in usd per share) | $ 4.85 | |||||||||||
Private placement, net | $ | $ 7,000 | |||||||||||
Conversion ratio | 1 |