SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Redeemable Common Stock) (Details) (USD $)	12 Months Ended	19 Months Ended		12 Months Ended							34 Months Ended	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012 Fourth Amended and Restated Share Redemption Program [Member]	Dec. 31, 2012 Maximum [Member] Third Amended and Restated Share Redemption Program [Member]	Dec. 31, 2012 Held for One Year [Member] Fourth Amended and Restated Share Redemption Program [Member]	Dec. 31, 2012 Held for Two Years [Member] Fourth Amended and Restated Share Redemption Program [Member]	Dec. 31, 2012 Held for Three Years [Member] Fourth Amended and Restated Share Redemption Program [Member]	Dec. 31, 2012 Held for Four Years [Member] Fourth Amended and Restated Share Redemption Program [Member]	Dec. 31, 2012 Common Stock [Member]	Dec. 31, 2012 Common Stock [Member]	Dec. 31, 2012 Common Stock [Member] Maximum [Member]	Dec. 31, 2012 Common Stock [Member] Minimum [Member]	Dec. 31, 2012 Unfulfilled Redemption Request [Member]
Equity, Class of Treasury Stock [Line Items]
Maximum percentage of weighted-average shares outstanding available for redemption during any calendar year					5.00%
Redemption price of most recent estimated value per share						$ 9.25	$ 9.50	$ 9.75	$ 10.00
Redemption price percentage of most recent estimated value per share						92.50%	95.00%	97.50%	100.00%
Term company has not established an estimated value per share	18 months									18 months
Period for updating estimated value per share												18 months	12 months
Redemptions of common stock, value	$ 740,000	$ 700,000								$ 1,000	$ 700,000
Stock outstanding and unfulfilled redemption requests, value										400,000	400,000
Stock outstanding and unfulfilled redemption requests, shares										43,194	43,194
Other liabilities	2,872,000	2,872,000	833,000											400,000
Remaining authorized repurchase amount				$ 5,200,000