Note 1 - General (Detail) - Business Acquisitions - Contributions to Revenues and Profits Since Acquisitions (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012		Sep. 30, 2012
CRTS [Member]
Revenues	$ 4,503		$ 18,031
Net income (loss)	(251)	[1]	1,346	[1]
Hockway [Member]
Revenues	1,392		4,151
Net income (loss)	33		106
Fyfe NA [Member]
Revenues	15,912		46,809
Net income (loss)	142	[1]	459	[1]
Fyfe LA [Member]
Revenues	270		872	[2]
Net income (loss)	(64)		(192)	[2]
Fyfe Asia [Member]
Revenues	3,715		7,585	[2]
Net income (loss)	$ 243		$ 327	[2]

[1] Net income includes an allocation of corporate expenses that is not necessarily indicative of the entity's operations on a stand-alone basis

[2] From respective acquisition date through September 30, 2012