Note 12 - Fair Value Measurements (Details) (USD $)	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013	Dec. 31, 2013
Note 12 - Fair Value Measurements (Details) [Line Items]
Marketable Securities	$ 63,312,000	[1]		$ 62,766,000	[1]
Asset Impairment Charges	6,893,000		3,229,000
Other Investments [Member]
Note 12 - Fair Value Measurements (Details) [Line Items]
Asset Impairment Charges	100,000
Fair Value, Estimate Not Practicable, Carrying (Reported) Amount [Member]
Note 12 - Fair Value Measurements (Details) [Line Items]
Impairment of Real Estate	6,800,000
Discontinued Operations [Member]
Note 12 - Fair Value Measurements (Details) [Line Items]
Asset Impairment Charges	3,100,000		2,800,000
Fair Value, Inputs, Level 1 [Member]
Note 12 - Fair Value Measurements (Details) [Line Items]
Marketable Securities	60,500,000			59,700,000
Fair Value, Inputs, Level 3 [Member]
Note 12 - Fair Value Measurements (Details) [Line Items]
Marketable Securities	$ 2,700,000			$ 3,100,000

[1] As of March 31, 2014 and December 31, 2013, the Company determined that $60.5 million and $59.7 million, respectively, of the Marketable securities estimated fair value were classified within Level 1 of the fair value hierarchy and the remaining $2.7 million and $3.1 million, respectively, were classified within Level 3 of the fair value hierarchy.