Summary of Significant Accounting Policies Narrative Tagging (Details) (USD $)	12 Months Ended							3 Months Ended			12 Months Ended
	Dec. 31, 2012 banks years	Dec. 31, 2011	Dec. 31, 2010	Feb. 28, 2013 properties	Dec. 31, 2012 Consolidated Properties [Member] Limited Partner [Member] properties	Dec. 31, 2012 Variable Interest Entity, Primary Beneficiary [Member] properties	Dec. 31, 2012 Glynn Place and Residences of Weatherford [Member] properties	Dec. 31, 2012 Residences at Weatherford [Member]	Sep. 30, 2011 Residences at Weatherford [Member]	Mar. 31, 2011 Residences at Weatherford [Member] Unit	Dec. 31, 2012 Woodland Park [Member]	Dec. 31, 2011 Woodland Park [Member] Unit	Dec. 31, 2012 TEB Facility [Member]
Building Useful Life-Minimum	19
Building Useful Life-Maximum	40
Capital Improvements Useful Life-Minimum	5
Capital Improvements Useful Life-Maximum	15
Noncontrolling Interest, Ownership Percentage by Parent					99.00%
Number of Real Estate Properties				3	3	3	2
Number of Financial Institutions	2
Cash, FDIC Insured Amount	$ 250,000
Restricted Cash and Cash Equivalents							2,900,000		500,000				725,000
Real Estate Cap Rate-Minimum	6.25%
Real Estate Cap Rate-Maximum	7.50%
Tolerable Range of Difference in Valuation	0.00%
Asset Impairment Charges	0	0	2,528,852					2,700,000
Number of Units in Real Estate Property										76		236
Provision for Doubtful Accounts	0	4,242,571	562,385								453,000	953,000
Deferred Finance Costs, Gross	4,600,000	4,700,000
Amortization of Financing Costs	1,800,000	1,300,000
Deferred Tax Assets, Valuation Allowance	$ 10,000,000	$ 9,600,000