Summary of Significant Accounting Policies - Additional Information (Detail) (USD $) Share data in Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Summary Of Significant Accounting Policies [Line Items]
Allowance for doubtful accounts					$ 131,996
Depreciation expense	48,191	38,947	72,567	73,191
Depreciation Charged To Production	43,764	35,259	64,328	69,177
Potential common shares issuable			66
Cash, insured limit	250,000		250,000
Number of banks where cash is maintained	2		2
Bank One
Summary Of Significant Accounting Policies [Line Items]
Cash, insured limit	2,600,000		2,600,000		300,000
Rutgers
Summary Of Significant Accounting Policies [Line Items]
Royalty Expense	$ 50,000	$ 50,000	$ 100,000	$ 100,000
Minimum
Summary Of Significant Accounting Policies [Line Items]
Property and equipment, estimated useful lives			2 years
Maximum
Summary Of Significant Accounting Policies [Line Items]
Property and equipment, estimated useful lives			20 years