Commitments and Contingencies - Additional Information (Detail) (USD $)	0 Months Ended	1 Months Ended	3 Months Ended
	Nov. 10, 2004	Sep. 30, 2008	Mar. 31, 2013	Mar. 31, 2012
Commitments and Contingencies [Line Items]
Lease agreement, term			3 years
Lease agreement, Current monthly lease payments			$ 3,800
Lease agreement, Initial lease expiration date			Oct. 31, 2013
Lease agreement, additional optional term			1 year
Facility rent expense			11,400	11,300
Royalty payment to Rutgers, minimum rate			1.50%
Royalty payment to Rutgers, maximum rate			3.00%
Shares of common stock issued for loan consideration	1,701,341
Summary judgment granted to the company against Tonga for disgorgement of short-swing profits		5,000,000
Accrued license fee			22,600	13,500
Cost of sales
Commitments and Contingencies [Line Items]
Payments for royalties			$ 27,400	$ 36,500