Note 4 - Goodwill and Intangible Assets (Details) - Intangible Assets (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 240,359		$ 240,359		$ 273,385
Accumulated Amortization	(50,385)		(50,385)		(64,102)
Impairment of Intangible Assets, Finite-lived	10,896	0	10,896	0
Net Carrying Amount	189,974		189,974		209,283
Licensing Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Lives			6 years
Gross Carrying Amount	3,912		3,912		3,917
Accumulated Amortization	(3,094)		(3,094)		(2,977)
Net Carrying Amount	818		818		940
Backlog [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Lives			0 years
Gross Carrying Amount	4,736		4,736		4,745
Accumulated Amortization	(4,736)		(4,736)		(4,745)
Net Carrying Amount	0		0		0
Leases [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Lives			12 years
Gross Carrying Amount	2,067		2,067		2,067
Accumulated Amortization	(588)		(588)		(477)
Net Carrying Amount	1,479		1,479		1,590
Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Lives			16 years
Gross Carrying Amount	21,648		21,648		21,394
Accumulated Amortization	(4,941)		(4,941)		(4,167)
Net Carrying Amount	16,707		16,707		17,227
Non-competes [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Lives			4 years
Gross Carrying Amount	1,140		1,140		1,140
Accumulated Amortization	(817)		(817)		(753)
Net Carrying Amount	323		323		387
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Lives			14 years
Gross Carrying Amount	147,704		147,704		182,703
Accumulated Amortization	(12,517)		(12,517)		(28,287)
Net Carrying Amount	135,187		135,187		154,416
Patents and acquired technology [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Lives			16 years
Gross Carrying Amount	59,152		59,152		57,419
Accumulated Amortization	(23,692)		(23,692)		(22,696)
Net Carrying Amount	$ 35,460		$ 35,460		$ 34,723