Other Assets Schedule of Loan Receivable (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012 Prairiebrook Village [Member]	Dec. 31, 2009 Prairiebrook Village [Member]
Loan Receivable beginning of period	$ 16,782,918	$ 9,899,719	$ 735,719
Asset Held For Sale Valuation				375,000
Provision for Doubtful Accounts	0	4,242,571	562,385
Deconsolidation of VIE	0	1,861,051	7,589,901
Debt Instrument, Increase, Accrued Interest	(1,351,984)	(779,577)	(1,011,744)
Loan receivable end of period	18,134,902	16,782,918	9,899,749
Provision for Loan and Lease Losses	$ 452,700	$ 952,700	$ 0	$ 711,000	$ 700,000