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Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)
6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Dec. 31, 2014
Accounting Policies [Abstract]      
Potentially dilutive securities include options, restricted stock units, warrants, and convertible promissory notes 16,908,173 19,287,215  
Finished goods inventory $ 13,827   $ 30,759
Reserve for inventory obsolescence $ 0