Note 6 - Property, Equipment and Construction in Progress (Details) - Interest And Depreciation Expense Capitalized to Construction In Progress (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Interest And Depreciation Expense Capitalized to Construction In Progress [Abstract]
Interest expense capitalized	$ 2,237	$ 5,307	$ 7,228	$ 12,039
Depreciation expense capitalized		$ 32		$ 37