Identifiable Intangible Assets and Goodwill - (Tables)

3 Months Ended

Mar. 31, 2013

Identifiable Intangible Assets and Goodwill [Abstract]

Schedule of Goodwill [Table Text Block]

The changes in the carrying amount of goodwill are as follows:

Balance at December 31, 2012	$	11,371
NanoPhotonics GmbH acquisition	(125		)
Azores acquisition	6
Balance at March 31, 2013	$	11,252

Schedule of Finite-Lived Intangible Assets by Major Class [Table Text Block]

Purchased intangible assets as of  March 31, 2013 and December 31, 2012 are as follows:

	Gross Carrying Amount		Accumulated Amortization		Net
March 31, 2013
Developed technology	$	58,916	$	49,889	$	9,027
Customer and distributor relationships	8,678		7,167		1,511
Trade names	4,361		3,228		1,133
Total identifiable intangible assets	$	71,955	$	60,284	$	11,671
December 31, 2012
Developed technology	$	58,961	$	49,358	$	9,603
Customer and distributor relationships	8,712		7,102		1,610
Trade names	4,361		3,216		1,145
Total identifiable intangible assets	$	72,034	$	59,676	$	12,358