Fair Value Measurements and Disclosures (Details) (Level 3, USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2013	Dec. 31, 2012
Level 3
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation Calculation [Roll Forward]
Marketable Securities and Warrant derivative liability at beginning of year	$ 701,852	$ 92,606
Marketable Securities and Warrant derivative liability - Revisions	178,844	609,246
Marketable Securities and Warrant derivative liability at end of year	$ 880,696	$ 701,852