Note 6 - Property and Equipment (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Note 6 - Property and Equipment (Details) [Line Items]
Property, Plant and Equipment, Disposals		$ 4,503
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	44,028	42,011
Gain (Loss) on Disposition of Assets		(10)
Depreciation, Depletion and Amortization, Nonproduction	1,994	3,168	4,244
Disposal of Assets [Member]
Note 6 - Property and Equipment (Details) [Line Items]
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment		$ 4,493