Note 4 - Goodwill and Intangible Assets (Details) (USD $)	3 Months Ended				9 Months Ended
	Sep. 30, 2013	Mar. 31, 2013	Sep. 30, 2012	Jun. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Note 4 - Goodwill and Intangible Assets (Details) [Line Items]
Goodwill	$ 163,205,000				$ 163,205,000		$ 163,205,000
Goodwill, Impairment Loss			36,600,000	12,000,000		48,600,000
Impairment of Intangible Assets, Finite-lived		600,000
Amortization of Intangible Assets	931,000		1,031,000		2,792,000	3,093,000
Total [Member]
Note 4 - Goodwill and Intangible Assets (Details) [Line Items]
Goodwill	163,200,000				163,200,000		163,200,000
High Performance Technologies, Inc. [Member]
Note 4 - Goodwill and Intangible Assets (Details) [Line Items]
Amortization of Intangible Assets	$ 900,000		$ 1,000,000		$ 2,800,000	$ 3,100,000