Note 3 - Details of Selected Balance Sheet Accounts (Details) - Property, Plant and Equipment (USD $) In Thousands, unless otherwise specified							6 Months Ended				6 Months Ended				6 Months Ended				6 Months Ended				6 Months Ended				6 Months Ended
	Jun. 30, 2013	Dec. 31, 2012	Jun. 30, 2013 Land [Member]	Dec. 31, 2012 Land [Member]	Jun. 30, 2013 Accommodation Assets [Member]	Dec. 31, 2012 Accommodation Assets [Member]	Jun. 30, 2013 Accommodation Assets [Member] Minimum [Member]	Jun. 30, 2013 Accommodation Assets [Member] Maximum [Member]	Jun. 30, 2013 Building and Building Improvements [Member]	Dec. 31, 2012 Building and Building Improvements [Member]	Jun. 30, 2013 Building and Building Improvements [Member] Minimum [Member]	Jun. 30, 2013 Building and Building Improvements [Member] Maximum [Member]	Jun. 30, 2013 Machinery and Equipment [Member]	Dec. 31, 2012 Machinery and Equipment [Member]	Jun. 30, 2013 Machinery and Equipment [Member] Minimum [Member]	Jun. 30, 2013 Machinery and Equipment [Member] Maximum [Member]	Jun. 30, 2013 Completion Services [Member]	Dec. 31, 2012 Completion Services [Member]	Jun. 30, 2013 Completion Services [Member] Minimum [Member]	Jun. 30, 2013 Completion Services [Member] Maximum [Member]	Jun. 30, 2013 Office Furniture And Equipment [Member]	Dec. 31, 2012 Office Furniture And Equipment [Member]	Jun. 30, 2013 Office Furniture And Equipment [Member] Minimum [Member]	Jun. 30, 2013 Office Furniture And Equipment [Member] Maximum [Member]	Jun. 30, 2013 Vehicles [Member]	Dec. 31, 2012 Vehicles [Member]	Jun. 30, 2013 Vehicles [Member] Minimum [Member]	Jun. 30, 2013 Vehicles [Member] Maximum [Member]	Jun. 30, 2013 Construction in Progress [Member]	Dec. 31, 2012 Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life							3 years	15 years			3 years	40 years			2 years	29 years			4 years	10 years			1 year	10 years			2 years	10 years
Balance	$ 2,820,931	$ 2,729,437	$ 60,630	$ 58,888	$ 1,444,093	$ 1,481,830			$ 196,196	$ 194,676			$ 426,830	$ 402,342			$ 289,594	$ 264,225			$ 56,386	$ 54,337			$ 132,561	$ 123,474			$ 214,641	$ 149,665
Accumulated depreciation	(962,521)	(877,311)
	$ 1,858,410	$ 1,852,126