Note 4 - Goodwill and Intangible Assets (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012		Sep. 30, 2011
Goodwill, Acquired During Period			$ 23,400,000	[1]
Amortization of Intangible Assets	2,600,000	2,300,000	8,300,000		4,700,000
Fyfe LA [Member] | Patents [Member]
Finite-lived Intangible Assets Acquired			1,400,000
Finite-Lived Intangible Asset, Useful Life			20 years
Fyfe LA [Member] | Customer Relationships [Member]
Finite-lived Intangible Assets Acquired			14,500,000
Finite-Lived Intangible Asset, Useful Life			15 years
Fyfe LA [Member]
Goodwill, Acquired During Period			1,700,000
Goodwill, Purchase Accounting Adjustments			800,000
Fyfe Asia [Member]
Goodwill, Acquired During Period			19,300,000
Goodwill, Purchase Accounting Adjustments	1,744,000		1,800,000
Hockway [Member]
Goodwill, Purchase Accounting Adjustments			(1,500,000)
Fyfe NA [Member]
Goodwill, Purchase Accounting Adjustments			(200,000)
CRTS [Member]
Goodwill, Purchase Accounting Adjustments			$ 1,600,000
Patents [Member]
Finite-Lived Intangible Asset, Useful Life			18 years
Customer Relationships [Member]
Finite-Lived Intangible Asset, Useful Life			15 years

[1] During the first nine months of 2012, the Company initially recorded goodwill of $1.7 million and $19.3 million related to the acquisitions of Fyfe LA and Fyfe Asia, respectively. Additionally, the Company recorded decreases of $1.5 million and $0.2 million in goodwill related to the 2011 acquisitions of Hockway and Fyfe NA, respectively, and increases of $1.6 million, $0.8 million and $1.8 million in goodwill related to the CRTS, Fyfe LA and Fyfe Asia acquisitions, respectively.