Transactions with Related Parties Narrative Tagging (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013 properties
rate for administration fees			0.45%
Fees and Commissions, Other	$ 403,000	$ 470,000	$ 726,000	$ 862,000
Management Fees Revenue	315,000	305,000	634,000	608,000
Number of Variable Interest Entities					4
Majority-Owned Subsidiary, Unconsolidated [Member]
Payment for Administrative Fees	471,000	370,000	944,000	712,000
Affiliated Entity [Member]
Payment for Administrative Fees	17,000	33,000	34,000	66,000
Consolidated VIEs [Member]
Number of Real Estate Properties	2		2
Number of Variable Interest Entities	2		2
MF Properties [Member]
Number of Real Estate Properties	6		6
UNL Project [Member]
Fees and Commissions	$ 56,000		$ 168,000
Total Owners [Member]
Number of Owners	4		4
Total Owners [Member] | Related party owner [Member]
Number of Owners	2		2
Total Owners [Member] | Consolidated VIEs [Member]
Number of Variable Interest Entities	2		2