Consolidated Balance Sheets (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Assets
Allowance for doubtful accounts (in US Dollars)	$ 1,938	$ 2,219
Unamortized leasing fees to Vornado (in US Dollars)	37,588	39,910
Deferred debt issuance costs, accumulated amortization (in US Dollars)	$ 18,594	$ 16,834
Liabilities and Equity
Preferred stock: par value per share (in Dollars Per Share)	$ 1.00	$ 1.00
Preferred stock: authorized shares	3,000,000	3,000,000
Preferred stock: issued shares	0	0
Preferred stock: outstanding shares	0	0
Common stock: par value per share (in Dollars Per Share)	$ 1.00	$ 1.00
Common stock: authorized shares	10,000,000	10,000,000
Common stock: issued shares	5,173,450	5,173,450
Common stock: outstanding shares	5,106,196	5,105,936
Treasury stock: shares	67,254	67,514