Quarterly report pursuant to sections 13 or 15(d)

Summary of Significant Accounting Policies - Additional Information (Detail)

v2.4.0.8
Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2013
Mar. 31, 2013
Jun. 30, 2012
Jun. 30, 2013
Segment
Jun. 30, 2012
Dec. 31, 2012
Dec. 31, 2011
Summary Of Significant Accounting Policies [Line Items]              
Cash on hand $ 5,347,361   $ 1,085,509 $ 5,347,361 $ 1,085,509 $ 4,434,292 $ 3,014,656
Cash flow from operations 160,432 5,009,158 798,059 5,169,590 1,854,757    
Cash proceeds from issuance of common stock 5,000,000 5,000,000   4,760,412      
Revenues realized 7,357,307   1,053,305 13,668,709 2,201,552    
Accrued liability for inventory returns   789,057          
Revenue from sales taxes       522,000      
Maturity of temporary cash investments       3 months      
Provision for income taxes 0   0 0 0    
Anti-dilutive shares       22,427,614 3,221,393    
Stock options granted       0   54,250  
Stock-based compensation expenses 508,791   26,239 700,885 44,086    
Number of reportable segments       2      
Revenue
              
Summary Of Significant Accounting Policies [Line Items]              
Percentage of risk concentration       58.00%      
Trade Accounts Receivable
              
Summary Of Significant Accounting Policies [Line Items]              
Percentage of risk concentration       75.00%      
Level 1
              
Summary Of Significant Accounting Policies [Line Items]              
Cash equivalents at fair value 61,000     61,000   3,693,000  
Employees
              
Summary Of Significant Accounting Policies [Line Items]              
Stock-based compensation expenses 58,606   26,239 90,231 44,086    
Non Employees
              
Summary Of Significant Accounting Policies [Line Items]              
Stock-based compensation expenses 450,186   0 610,654 0    
Issuance of Equity
              
Summary Of Significant Accounting Policies [Line Items]              
Cash proceeds from issuance of convertible preferred stock $ 5,000,000 $ 5,000,000          
Minimum
              
Summary Of Significant Accounting Policies [Line Items]              
Unamortized licensing fees Period       3 years      
Product warranty       1 year      
Maximum
              
Summary Of Significant Accounting Policies [Line Items]              
Unamortized licensing fees Period       10 years      
Product warranty       7 years