Note 14 - Fair Value Measurements (Detail) (USD $)	9 Months Ended
	Sep. 30, 2012		Sep. 30, 2011	Dec. 31, 2011
Marketable Securities	$ 35,811,000	[1]		$ 33,540,000	[1]
Impairment of Real Estate	37,600,000		16,700,000
Segment, Discontinued Operations [Member]
Impairment of Real Estate	15,200,000		8,900,000
Fair Value, Inputs, Level 1 [Member]
Marketable Securities	32,700,000
Fair Value, Inputs, Level 3 [Member]
Marketable Securities	$ 3,400,000

[1] As of September 30, 2012, $32.7 million of these assets' estimated fair value were classified within Level 1 of the fair value hierarchy and the remaining $3.4 million were classified within Level 3 of the fair value hierarchy.