Significant property acquisitions and sales in first quarter of 2014 (Details) (USD $)	Mar. 26, 2014	Mar. 13, 2014	Feb. 06, 2014
Significant property acquisitions and sales in first quarter of 2014
Company sold apartment complex known as Pecan Pointe, to an independent third party in units			232
Sale price of apartment complex known as Pecan Pointe			$ 23,100,000
The buyer assumed the existing debt secured by the property			16,500,000
Gain recorded on the sale of apartment complex known as Pecan Pointe			6,100,000
Company acquired acres of land known as Three Hickory as a result of the settlement agreement with the lender		6.6
Company sold the land to IOT for an amount		1,200,000
Gain on the sale of land to IOT		1,200,000
Company sold acres of land known as McKinney Ranch land, to an independent third party	6.314
Sale price of land known as McKinney Ranch land	1,700,000
Company paid existing mortgage to satisfy a portion of the multi-tract collateral debt of $6.6 million	1,500,000
Gain on the sale of land to an independent third party	$ 800,000