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Note 5 - Property and Equipment (Detail) - Property and Equipment, at Cost (USD $)
In Thousands, unless otherwise specified
24 Months Ended 24 Months Ended 24 Months Ended 24 Months Ended 24 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2012
Equipment [Member]
Minimum [Member]
Dec. 31, 2012
Equipment [Member]
Maximum [Member]
Dec. 31, 2012
Equipment [Member]
Dec. 31, 2011
Equipment [Member]
Dec. 31, 2012
Office Equipment [Member]
Minimum [Member]
Dec. 31, 2012
Office Equipment [Member]
Maximum [Member]
Dec. 31, 2012
Office Equipment [Member]
Dec. 31, 2011
Office Equipment [Member]
Dec. 31, 2012
Land and Land Improvements [Member]
Minimum [Member]
Dec. 31, 2012
Land and Land Improvements [Member]
Maximum [Member]
Dec. 31, 2012
Land and Land Improvements [Member]
Dec. 31, 2011
Land and Land Improvements [Member]
Dec. 31, 2012
Building and Building Improvements [Member]
Minimum [Member]
Dec. 31, 2012
Building and Building Improvements [Member]
Maximum [Member]
Dec. 31, 2012
Building and Building Improvements [Member]
Dec. 31, 2011
Building and Building Improvements [Member]
Dec. 31, 2012
Construction in Progress [Member]
Dec. 31, 2011
Construction in Progress [Member]
Dec. 31, 2012
Property, Plant and Equipment, Other Types [Member]
Minimum [Member]
Dec. 31, 2012
Property, Plant and Equipment, Other Types [Member]
Maximum [Member]
Dec. 31, 2012
Property, Plant and Equipment, Other Types [Member]
Dec. 31, 2011
Property, Plant and Equipment, Other Types [Member]
Estimated Useful Lives     3 years 10 years     5 years 10 years     0 years 10 years     7 years 40 years         2 years 7 years    
Property and equipment, at cost $ 419,947 $ 440,051     $ 331,761 $ 351,433     $ 13,089 $ 12,706     $ 16,658 $ 18,910     $ 41,050 $ 39,025 $ 1,310 $ 1,221     $ 16,079 $ 16,756