XML 12 R55.htm IDEA: XBRL DOCUMENT v2.4.0.8
Subsequent Events - Selected Balance Sheet Data (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Mar. 31, 2013
Dec. 31, 2012
Subsequent Event [Line Items]        
Cash and cash equivalents $ 650 $ 1,402 $ 782 $ 2,385
Total assets 12,978 12,387    
Current portion of long-term debt 15,000 15,000    
Derivative liability 9,998 12,237    
Total liabilities 33,403 33,339    
Total stockholders' (deficit) equity (109,215) (108,109)    
Total liabilities, redeemable convertible preferred stock, and stockholders' deficit 12,978 12,387    
Series A Convertible Preferred Stock [Member]
        
Subsequent Event [Line Items]        
Preferred stock value 250 250    
Series B Convertible Preferred Stock [Member]
        
Subsequent Event [Line Items]        
Preferred stock value 4,215 4,215    
Series C Convertible Preferred Stock [Member]
        
Subsequent Event [Line Items]        
Preferred stock value 28,121 28,121    
Series C-2 Convertible Preferred Stock [Member]
        
Subsequent Event [Line Items]        
Preferred stock value 13,500 13,500    
Series D-1 Convertible Preferred Stock [Member]
        
Subsequent Event [Line Items]        
Preferred stock value 16,952 16,952    
Series D-2 Convertible Preferred Stock [Member]
        
Subsequent Event [Line Items]        
Preferred stock value 25,752 24,119    
Subsequent Event [Member]
        
Subsequent Event [Line Items]        
Cash and cash equivalents 650      
Total assets 12,978      
Current portion of long-term debt 15,000      
Derivative liability 9,998      
Total liabilities 33,403      
Total stockholders' (deficit) equity (109,215)      
Total liabilities, redeemable convertible preferred stock, and stockholders' deficit 12,978      
Subsequent Event [Member] | Series A Convertible Preferred Stock [Member]
        
Subsequent Event [Line Items]        
Preferred stock value 250      
Subsequent Event [Member] | Series B Convertible Preferred Stock [Member]
        
Subsequent Event [Line Items]        
Preferred stock value 4,215      
Subsequent Event [Member] | Series C Convertible Preferred Stock [Member]
        
Subsequent Event [Line Items]        
Preferred stock value 28,121      
Subsequent Event [Member] | Series C-2 Convertible Preferred Stock [Member]
        
Subsequent Event [Line Items]        
Preferred stock value 13,500      
Subsequent Event [Member] | Series D-1 Convertible Preferred Stock [Member]
        
Subsequent Event [Line Items]        
Preferred stock value 16,952      
Subsequent Event [Member] | Series D-2 Convertible Preferred Stock [Member]
        
Subsequent Event [Line Items]        
Preferred stock value 25,752      
Pro Forma [Member] | Subsequent Event [Member]
        
Subsequent Event [Line Items]        
Cash and cash equivalents 42,435      
Total assets 49,510      
Current portion of long-term debt 0      
Derivative liability 0      
Total liabilities 6,690      
Total stockholders' (deficit) equity 42,820      
Total liabilities, redeemable convertible preferred stock, and stockholders' deficit 49,510      
Pro Forma [Member] | Subsequent Event [Member] | Series A Convertible Preferred Stock [Member]
        
Subsequent Event [Line Items]        
Preferred stock value 0      
Pro Forma [Member] | Subsequent Event [Member] | Series B Convertible Preferred Stock [Member]
        
Subsequent Event [Line Items]        
Preferred stock value 0      
Pro Forma [Member] | Subsequent Event [Member] | Series C Convertible Preferred Stock [Member]
        
Subsequent Event [Line Items]        
Preferred stock value 0      
Pro Forma [Member] | Subsequent Event [Member] | Series C-2 Convertible Preferred Stock [Member]
        
Subsequent Event [Line Items]        
Preferred stock value 0      
Pro Forma [Member] | Subsequent Event [Member] | Series D-1 Convertible Preferred Stock [Member]
        
Subsequent Event [Line Items]        
Preferred stock value 0      
Pro Forma [Member] | Subsequent Event [Member] | Series D-2 Convertible Preferred Stock [Member]
        
Subsequent Event [Line Items]        
Preferred stock value $ 0