Restructuring - Change in Company's Reverse with Respect to Restructuring Plan (Detail) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Restructuring Cost and Reserve [Line Items]
Beginning Balance	$ 102,500		$ 128,900
Expense		(217,739)		(217,739)
Payment/Charges			(26,400)
Ending Balance	102,500		102,500
Severance [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	13,500		27,900
Expense
Payment/Charges			(14,400)
Ending Balance	13,500		13,500
Inventory [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	89,000		89,000
Expense
Payment/Charges
Ending Balance	89,000		89,000
Other [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance			12,000
Expense
Payment/Charges			(12,000)
Ending Balance