Quarterly report pursuant to sections 13 or 15(d)

Related Party Transactions - Additional Information (Detail)

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Related Party Transactions - Additional Information (Detail) (USD $)
In Thousands, except Share data, unless otherwise specified
1 Months Ended 3 Months Ended
Dec. 28, 2011
Sep. 14, 2006
Jun. 30, 2013
Mar. 31, 2013
Related Party Transaction [Line Items]        
Number of shares granted 3,170      
Description of shares vesting     (i) one third vested upon the completion our most recent equity financing; (ii) one third vested on July 3, 2013 when the Company's total enterprise value equals or exceeds $100,000; and (iii) one third shall vest immediately if on any date during the term or within 12 months following the term our total enterprise value equals or exceeds $200,000;  
Related Party
       
Related Party Transaction [Line Items]        
Agreement period   5 years    
Service fee per quarter $ 450,000 $ 90    
Management fees incurred     0 0
Accrued payables to related party     0 0
Agreement term 1 year      
Annual fee reimbursed $ 80,000      
Related Party | First Grant
       
Related Party Transaction [Line Items]        
Number of shares granted     680,000  
Related Party | Second Grant
       
Related Party Transaction [Line Items]        
Number of shares granted 720,000      
Related Party | Share Awarded For Service Third Grant
       
Related Party Transaction [Line Items]        
Number of shares granted 200,000      
Vesting period 1 year      
Related Party | Restricted Stock Awards
       
Related Party Transaction [Line Items]        
Number of shares granted     1,600,000  
Related Party | Maximum
       
Related Party Transaction [Line Items]        
Percent of annual fees paid 100.00%