Deferred Tax Assets and Liabilities (Detail) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Deferred Tax Assets:
Non-cash interest expense	$ 1,403,000	$ 1,198,911
Share-based compensation	3,622,057	3,352,610
Other	254,740	254,740
Net operating loss carry forward	6,950,951	4,782,668
Less: Valuation allowance	(11,928,354)	(9,286,535)
Deferred Tax Assets, Gross	302,394	302,394
Deferred Tax Liabilities:
Property and equipment	(302,394)	(302,394)
Net deferred asset (liability)	$ 0	$ 0