Annual report pursuant to section 13 and 15(d)

Pro Forma Effect of Results of Operations (Detail)

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Pro Forma Effect of Results of Operations (Detail) (USD $)
In Thousands, except Per Share data, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Quantifying Misstatement in Current Year Financial Statements [Line Items]      
Revenue $ 26,060 $ 4,481 $ 8,988
Gross profit 9,952 (224) 1,913
Operating loss (10,522) (9,417) (5,310)
Other income (expenses) (6,299) 838 (115)
Net loss (16,821) (8,578) (5,469)
Dividends and accretion to redemption value of Series E and F (1,360) (31)  
Net loss attributable to common stockholders (20,471) (13,804) (5,469)
Basic and diluted loss per common share:      
Loss from continuing operations attributable to common stockholders $ (0.26) $ (0.63) $ (0.33)
Net loss attributable to common stockholders $ (0.26) $ (0.63) $ (0.33)
Before Capital Restructuring
     
Quantifying Misstatement in Current Year Financial Statements [Line Items]      
Revenue 26,060    
Gross profit 9,952    
Operating loss (10,522)    
Other income (expenses) (6,299)    
Net loss (16,821)    
Dividends and accretion to redemption value of Series E and F (3,650)    
Net loss attributable to common stockholders (20,471)    
Basic and diluted loss per common share:      
Loss from continuing operations attributable to common stockholders $ (0.26)    
Net loss attributable to common stockholders $ (0.26)    
Pro Forma
     
Quantifying Misstatement in Current Year Financial Statements [Line Items]      
Revenue 26,060    
Gross profit 9,952    
Operating loss (10,522)    
Other income (expenses) 691    
Net loss (9,831)    
Dividends and accretion to redemption value of Series E and F (2,014)    
Net loss attributable to common stockholders (11,845)    
Basic and diluted loss per common share:      
Loss from continuing operations attributable to common stockholders $ (0.15)    
Net loss attributable to common stockholders $ (0.15)    
Series E Convertible Redeemable Preferred Stock | Adjustments
     
Quantifying Misstatement in Current Year Financial Statements [Line Items]      
Other income (expenses) 6,990    
Net loss 6,990    
Dividends and accretion to redemption value of Series E and F 1,636    
Net loss attributable to common stockholders $ 8,626