Statement of Accounts Payable and Accrued Expenses (Detail) (USD $)	Mar. 31, 2013	Dec. 31, 2012
Accounts Payable and Accrued Liabilities [Line Items]
Accounts payable	$ 1,012,867	$ 1,224,313
Accrued interest	663,295	669,035
Accrued rent expense	135,874	135,874
Accrued salaries, bonuses and payroll taxes	590,623	612,712
Accrued professional fees	204,892	204,247
Accounts payable and accrued expenses	$ 2,607,551	$ 2,846,181