Income Taxes (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Income Taxes
Maximum ownership as a percentage of the voting power or value of the securities of each issuer other than REIT or "TRS"			10.00%
Maximum ownership of securities in all TRS (as a percent)			25.00%
Maximum ownership of securities in all TRS when considered together with other non-real estate assets (as a percent)			25.00%
Period of statute of limitations applicable to the entity's income tax returns			3 years
Net operating losses
NOLs expiration period			20 years
Gross amount of NOLs available to company	$ 13,041,000		$ 13,041,000		$ 13,041,000
Income Tax Expense
Revised Texas Franchise tax rate (as a percent)			0.70%
Revised Texas franchise tax			$ 295,000	$ 244,000
Other Taxes			20,000	10,000
Income tax expense	$ 154,000	$ 117,000	315,000	$ 254,000
Deferred income taxes			$ 0