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Patent Licenses - Additional Information (Detail) (USD $)
6 Months Ended
Jun. 30, 2013
Patent Licenses [Line Items]  
Option and license fees $ 340,000
Additional option fees 22,500
Additional license fees 400,000
Cash proceeds 5,000,000
Patent acquisition costs 1,679,000
Convertible notes payable [Member]
 
Patent Licenses [Line Items]  
Interest rate 10.00%
UMass IP [Member]
 
Patent Licenses [Line Items]  
Net sales of product reduced 0.25%
UMass IP [Member] | Minimum [Member]
 
Patent Licenses [Line Items]  
Obligation to pay royalties (Ranged) 6.00%
UMass IP [Member] | Maximum [Member]
 
Patent Licenses [Line Items]  
Obligation to pay royalties (Ranged) 12.00%
ACT IP [Member]
 
Patent Licenses [Line Items]  
Patent acquisition costs $ 747,000