Note 1 - General (Details) - Business Acquisitions - Contributions to Revenues and Profits Since Acquisitions (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Brinderson LP [Member]
Note 1 - General - Business Acquisitions - Contributions to Revenues and Profits Since Acquisitions [Line Items]
Revenues	$ 47,948		$ 0		$ 47,948		$ 0
Net income(1)	1,225	[1]	0	[1]	1,225	[1]	0	[1]
Fyfe LA And Fyfe Asia [Member]
Note 1 - General - Business Acquisitions - Contributions to Revenues and Profits Since Acquisitions [Line Items]
Revenues	4,574		3,985		12,530		8,457
Net income(1)	$ 149	[1]	$ 179	[1]	$ 519	[1]	$ 135	[1]

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