Commitments and Contingencies - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Commitments and Contingencies [Line Items]
Lease agreement, Current monthly lease payments	$ 3,700		$ 3,700
Facility rent expense	11,100	11,300	33,100	33,900
Royalty payment to Rutgers, minimum rate	1.50%		1.50%
Royalty payment to Rutgers, maximum rate	3.00%		3.00%
Royalties accrued	229,045		229,045		351,846
Lease Expiration Date			Oct. 31, 2014
Charged to costs of sales
Commitments and Contingencies [Line Items]
Royalties accrued	19,195	13,200	19,195	13,200
Charged to operating expenses
Commitments and Contingencies [Line Items]
Royalties accrued	$ 30,805	$ 66,800	$ 30,805	$ 66,800