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Stockholders' Equity: (Details) (Freehold Raceway Mall and Chandler Fashion Center, USD $) In Thousands, except Share data, unless otherwise specified	1 Months Ended		12 Months Ended
	Apr. 30, 2012	Sep. 30, 2009	Dec. 31, 2011	Jun. 30, 2012	Apr. 10, 2012
Freehold Raceway Mall and Chandler Fashion Center
Warrants:
Aggregate number of common shares available for purchase under warrants		935,358
Value of stock warrants		$ 6,496
Exercise price of stock warrants (in dollars per share)		$ 46.68
Number of shares of warrants exercised			311,786		311,786
Exercise of stock warrants	$ 3,448		$ 1,278
Number of shares of warrants unexercised				311,786

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- Definition

The aggregate number of securities that a class of warrants or rights outstanding gives the holder(s) the right but not the obligation to purchase from the issuer at a specific price, on or before a certain date.

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Increase in additional paid in capital due to warrants issued during the period. Includes also the proceeds of debt securities issued with detachable stock purchase warrants that are allocable to the warrants. These warrants qualify for equity classification and provide the holder with a right to purchase stock from the entity.

+ References

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-Name Accounting Standards Codification

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The exercise price of each class of warrants or rights outstanding.

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