Accrued Expenses (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Payroll and related costs	$ 5,600	$ 18,100
Professional and consulting fees	10,500	77,400
Royalties	636,900	858,300
Stock price guarantee liabilities	134,600	443,200
Other	132,800	115,800
Total	$ 920,400	$ 1,512,800