SUBSEQUENT EVENT (Details) (Subsequent Event [Member], Mortgages [Member], Series Due 2013, 4.46 Percent [Member], USD $)	1 Months Ended
	Jul. 31, 2013
Subsequent Event [Member] | Mortgages [Member] | Series Due 2013, 4.46 Percent [Member]
Subsequent Event [Line Items]
Debt redeemed	$ 10,500,000
Stated interest rate	4.46%