Note 3 - Real Estate (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Property Subject to or Available for Operating Lease [Table Text Block]

	December 31,
	2012			2011
Land	$	1,927,800		$	1,847,770
Undeveloped land		96,500			97,275
Buildings and improvements:
Buildings		4,607,931			4,513,339
Building improvements		1,091,810			1,024,514
Tenant improvements		708,626			715,951
Fixtures and leasehold improvements		59,690			56,827
Other rental property (1)		357,667			335,859
		8,850,024			8,591,535
Accumulated depreciation and amortization		(1,745,462	)		(1,693,090	)
Total	$	7,104,562		$	6,898,445