MORTGAGE NOTES PAYABLE AND LINE OF CREDIT (Line of Credit) (Details)		12 Months Ended
	Jul. 31, 2014 USD ($)	Dec. 31, 2015 USD ($) item
Line of Credit
Credit line balance		$ 25,000,000
Line of Credit
Line of Credit
Maximum borrowings	$ 25,000,000
Term of debt	3 years
Amount of refinancing costs	$ 125,000
Credit line balance		$ 25,000,000
Interest rate at end of period (as a percent)		3.875%
Number of properties in which borrowing amount collateralized | item		23
Commitment fee		$ 36,000
Line of Credit | Base Rate
Line of Credit
Margin over basis of interest rate (as a percent)	2.50%
Line of Credit | Federal Funds Rate
Line of Credit
Basis of effective interest rate used in calculation of Base Rate (as a percent)	0.50%
Line of Credit | LIBOR
Line of Credit
Reference rate used in calculation of Base Rate	one month LIBOR
Basis of effective interest rate used in calculation of Base Rate (as a percent)	1.00%
Line of Credit | Minimum
Line of Credit
Pledged interests of the Partnership's ownership interest (as a percent)		49.00%
Commitment fee for unused amount (as a percent)		0.15%
Tangible net worth		$ 150,000,000
Ratio of net operating income to total indebtedness		9.50%
Debt service coverage ratio		1.6
Line of Credit | Maximum
Line of Credit
Pledged interests of the Partnership's ownership interest (as a percent)		100.00%
Commitment fee for unused amount (as a percent)		0.20%
Leverage ratio		65.00%
Aggregate increase in indebtedness		$ 15,000,000