Accounts Payable and Accrued Liabilities (Details) (USD $)	Mar. 31, 2013	Dec. 31, 2012
Accounts Payable and Accrued Liabilities [Abstract]
Accounts payable	$ 1,460,864	$ 1,168,077
Accrued bonuses	0	497,843
Other accrued liabilities	2,440,163	2,324,042
Accounts payable and accrued liabilities	$ 3,901,027	$ 3,989,962