Note 4 - Accumulated Other Comprehensive Income (Loss) (Details)	6 Months Ended				6 Months Ended		6 Months Ended
	Jun. 30, 2013 USD ($)	Jun. 30, 2013 AUD	Jun. 30, 2013 CAD	Dec. 31, 2012 USD ($)	Jun. 30, 2013 Canada, Dollars	Dec. 31, 2012 Canada, Dollars	Jun. 30, 2013 Australia, Dollars	Dec. 31, 2012 Australia, Dollars
Note 4 - Accumulated Other Comprehensive Income (Loss) (Details) [Line Items]
Accumulated Other Comprehensive Income (in Dollars)	$ (62,887,000)			$ 107,097,000
Increase (Decrease) in Accumulated Other Comprehensive Income (in Dollars)	(170,000,000)
Foreign Currency Exchange Rate, Translation					0.95	1.01	0.92	1.04
Decrease in Foreign Currency Exchange Rate					6.00%		12.00%
Functional Currency Net Assets (in Dollars and Dollars)		926,000,000	880,000,000