Note 4 - Goodwill and Intangible Assets (Details) (USD $)	3 Months Ended			6 Months Ended
	Jun. 30, 2013	Mar. 31, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 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			12,000,000		12,000,000
Impairment of Intangible Assets, Finite-lived		600,000
Amortization of Intangible Assets	930,000		1,031,000	1,861,000	2,062,000
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	$ 1,900,000	$ 2,100,000