Deferred Revenue (Details Textual) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2004	Dec. 31, 2012	Jul. 31, 2004
Proceeds From Related Party Debt			$ 4,000,000
Business Acquisition, Purchase Price Allocation, Property					4,000,000
Deferred Revenue	1,814,938			1,930,783	4,000,000
Minimum Lease Rental Years			4.1 years
Operating Leases, Income Statement, Minimum Lease Revenue	$ 9,635,863	$ 7,817,059	$ 1,800,000