Goodwill and Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2012

Goodwill and Intangible Assets [Abstract]

Summary of company's intangible assets

	March 31, 2012							December 31, 2011
	Cost		Accumulated Amortization			Net Carrying Amount		Cost		Accumulated Amortization			Net Carrying Amount
	(In thousands)
Technology	$	4,010	$	(3,377	)	$	633	$	4,010	$	(3,202	)	$	808
Customer relationships		3,530		(2,090	)		1,440		3,530		(1,999	)		1,531
Non-competition agreements		1,260		(1,025	)		235		1,260		(962	)		298
Tradenames		590		(493	)		97		590		(467	)		123
Total	$	9,390	$	(6,985	)	$	2,405	$	9,390	$	(6,630	)	$	2,760