Accrued Expenses (Details) (USD $)	Jun. 30, 2012	Dec. 31, 2011
Accrued Expenses [Abstract]
Payroll and related costs	$ 99,400	$ 41,600
Professional and consulting fees	79,200	51,200
Royalties	263,700	587,300
Rent guarantee liability	1,076,700	505,900
Other	192,600	146,500
Total	$ 1,711,600	$ 1,332,500