Note 8 - Long-Lived Assets (Detail) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Depreciation	$ 2,600,000	$ 1,000,000
Goodwill	58,257,000		53,093,000
Cost of Revenues [Member]
Depreciation	2,500,000	900,000
Selling, General, and Administrative [Member]
Depreciation	100,000	100,000
Amortization	2,400,000	800,000
Loss From Discontinued Operations, Net of Taxes [Member]
Impairment of Long-Lived Assets Held-for-use	100,000
Variable Interest Entity, Primary Beneficiary [Member]
Goodwill	$ 5,200,000