Student Housing Properties (Details Textual)	1 Months Ended	3 Months Ended
	Jul. 31, 2013 USD ($)	Mar. 31, 2015 USD ($)	Mar. 31, 2014 USD ($)	Jan. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Proceeds from Insurance Settlement, Investing Activities	$ 2,500,000	$ 375,000	$ 590,000
Number of Real Estate Properties				28
Insurance Settlements Receivable		4,600,000			$ 5,500,000
Gain (Loss) on Sale of Insurance Block	$ 6,800,000
Scenario, Forecast [Member]
Insurance Settlements Receivable		300,000
Amount of Remaining Insurance Settlement		$ 4,300,000