XML 41 R31.htm IDEA: XBRL DOCUMENT v3.4.0.3
Liquidity and Going Concern (Details) - USD ($)
$ in Thousands
3 Months Ended
May. 19, 2015
May. 15, 2012
Mar. 31, 2016
Apr. 11, 2016
Apr. 01, 2016
Feb. 12, 2016
Feb. 11, 2016
Dec. 31, 2015
Mar. 31, 2015
Dec. 31, 2014
Liquidity and Going Concern                    
Accumulated deficit     $ 202,360         $ 199,589    
Cash     $ 1,596         $ 2,958 $ 4,250 $ 7,220
Authorized shares           100,000,000 24,100,000      
Common stock, shares authorized     99,900,000     99,900,000   24,000,000    
Preferred stock, shares authorized     100,000     100,000   100,000    
Shelf Registration                    
Liquidity and Going Concern                    
Authorized amount   $ 50,000                
Maximum percentage of public float for public offering limit   33.00%                
Period of public float for public offering limit   12 months                
Public float threshold   $ 75,000                
Replacement Shelf                    
Liquidity and Going Concern                    
Authorized amount $ 50,000                  
Maximum percentage of public float for public offering limit 33.00%                  
Period of public float for public offering limit 12 months                  
Public float threshold $ 75,000                  
Line of credit with FGI                    
Liquidity and Going Concern                    
Maximum borrowing capacity     $ 7,500              
Term of extension     1 year              
Available borrowing capacity     $ 3,400              
Kanis Note | Notes Payable, Other Payables                    
Liquidity and Going Concern                    
Face amount of debt         $ 2,000          
Interest rate (as a percent)         8.00%          
Kanis Agreement | Convertible Debt                    
Liquidity and Going Concern                    
Aggregate principal amount outstanding         $ 7,500          
Liquidity event discount (as a percent)         25.00%          
Director Note | Convertible Debt                    
Liquidity and Going Concern                    
Face amount of debt       $ 500            
Interest rate (as a percent)       8.00%            
Liquidity event discount (as a percent)       25.00%