Note 4 - Goodwill and Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended										3 Months Ended
	Jun. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Customer relationships [Member]		Dec. 31, 2013 Non-competes [Member]		Dec. 31, 2013 Fyfe Asia [Member]	Dec. 31, 2013 Brinderson LP [Member]	Jul. 31, 2013 Brinderson LP [Member]	Sep. 30, 2013 Brinderson LP [Member] Customer relationships [Member]	Sep. 30, 2013 Brinderson LP [Member] Non-competes [Member]
Finite-Lived Intangible Assets [Line Items]
Goodwill, Written off Related to Sale of Business Unit	$ 1.4
Goodwill, Acquired During Period		62.9							0.2	62.7
Impairment of Intangible Assets (Excluding Goodwill)	2.5
Finite-Lived Customer Relationships, Gross											59.8
Finite-Lived Intangible Asset, Useful Life					14 years	[1],[2]	5 years	[1],[2]				15 years	5 years
Finite-Lived Noncompete Agreements, Gross											0.4
Amortization of Intangible Assets		$ 12.2	$ 10.5	$ 6.9

[1] During the third quarter of 2013, the Company recorded $59.8 million in customer relationships to be amortized over a weighted average life of 15 years and $0.4 million in non-compete agreements to be amortized over a weighted average life of 5 years related to the acquisition of Brinderson, as discussion in Note 1.

[2] During the second quarter of 2013, the Company approved a plan of liquidation with respect to BWW and, in connection therewith, recorded a write-down of the $2.5 million of intangible assets associated with BWW, which operation now is reported as discontinued. Consequently, the intangible assets and accumulated amortization associated with BWW are no longer included in this table. Additionally, all prior year balances have been retrospectively adjusted. For further information, see Note 11.