Note 5 - Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2015

Notes Tables

Schedule of Goodwill [Table Text Block]

(In thousands)	Fluids Systems			Mats and Integrated Services			Total
Balance at December 31, 2013	$	74,591		$	19,473		$	94,064
Effects of foreign currency		(1,907	)		(264	)		(2,171	)
Balance at December 31, 2014		72,684			19,209			91,893
Impairment		(70,720	)		-			(70,720	)
Effects of foreign currency		(1,964	)		(200	)		(2,164	)
Balance at December 31, 2015	$	-		$	19,009		$	19,009

Schedule of Intangible Assets and Goodwill [Table Text Block]

	December 31, 2015							December 31, 2014
(In thousands)	Gross Carrying Amount		Accumulated Amortization			Other intangible assets, net		Gross Carrying Amount		Accumulated Amortization			Other intangible assets, net
Technology related	$	5,077	$	(3,600	)	$	1,477	$	5,087	$	(3,277	)	$	1,810
Customer related		28,069		(19,638	)		8,431		35,910		(24,403	)		11,507
Employment related		1,625		(975	)		650		1,625		(650	)		975
Total amortizing intangible assets		34,771		(24,213	)		10,558		42,622		(28,330	)		14,292
Permits and licenses		493		-			493		549		-			549
Trademarks		-		-			-		825		-			825
Total indefinite-lived intangible assets		493		-			493		1,374		-			1,374
Total intangible assets	$	35,264	$	(24,213	)	$	11,051	$	43,996	$	(28,330	)	$	15,666

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

(In thousands)	2016		2017		2018		2019		2020		Thereafter		Total
Technology related	$	223	$	223	$	223	$	223	$	195	$	390	$	1,477
Customer related		3,183		2,362		1,035		738		533		580		8,431
Employment related		325		325		-		-		-		-		650
Total future amortization expense	$	3,731	$	2,910	$	1,258	$	961	$	728	$	970	$	10,558