Relationship with Vornado (Tables)

6 Months Ended

Jun. 30, 2012

Related party transactions [Abstract]

Summary of Fees to Vornado [Table Text Block]

		Three Months Ended				Six Months Ended
		June 30,				June 30,
(Amounts in thousands)		2012		2011		2012		2011
Company management fees		$	750	$	750	$	1,500	$	1,500
Development fees			187		188		375		376
Leasing fees			1,006		1,765		1,629		3,280
Property management fees and payments for cleaning, engineering
	and security services		1,275		1,007		2,542		2,133
		$	3,218	$	3,710	$	6,046	$	7,289