Quarterly report pursuant to Section 13 or 15(d)

Short Term Notes Payable - Additional Information (Detail)

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Short Term Notes Payable - Additional Information (Detail) (USD $)
6 Months Ended 6 Months Ended
Jun. 30, 2013
Dec. 31, 2012
Jun. 30, 2013
Product Liability Insurance [Member]
Mar. 08, 2013
Product Liability Insurance [Member]
Jun. 30, 2013
Directors' and Officers' Liability Insurance Financing [Member]
Jun. 20, 2013
Directors' and Officers' Liability Insurance Financing [Member]
Short-term Debt [Line Items]            
Short term notes payable for financing insurance policies $ 142,306 $ 47,977        
Short-term note payable       $ 50,037   $ 106,994
Interest rate on short-term note       6.57%   4.64%
Short-term notes payable amortization period     10 months   11 months  
Final payment date of short-term note payable     Jan. 10, 2014   Jun. 24, 2014