Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Sep. 30, 2012

Schedule of Changes in Carrying Amount of Goodwill

Changes in the carrying amount of goodwill are as follows ($000):

	Three Months Ended September 30, 2012
	Infrared Optics		Near-Infrared Optics			Military & Materials		Advanced Products Group		Total
Balance – beginning of period	$	9,612	$	48,496		$	12,326	$	10,314	$	80,748
Foreign currency translation		83		(83	)		—		—		—
Balance – end of period	$	9,695	$	48,413		$	12,326	$	10,314	$	80,748

Schedule of Gross Carrying Amount and Accumulated Amortization

The gross carrying amount and accumulated amortization of the Company’s intangible assets other than goodwill as of September 30, 2012 and June 30, 2012 was as follows ($000):

	September 30, 2012							June 30, 2012
	Gross Carrying Amount		Accumulated Amortization			Net Book Value		Gross Carrying Amount		Accumulated Amortization			Net Book Value
Patents	$	21,854	$	(8,078	)	$	13,776	$	21,856	$	(7,640	)	$	14,216
Trademarks		13,166		(907	)		12,259		13,166		(888	)		12,278
Customer Lists		25,868		(8,933	)		16,935		25,816		(8,296	)		17,520
Other		1,378		(1,378	)		—		1,375		(1,375	)		—
Total	$	62,266	$	(19,296	)	$	42,970	$	62,213	$	(18,199	)	$	44,014

Schedule of Estimated Amortization Expense for Existing Intangible Assets for Each of Five Succeeding Years

At September 30, 2012, the estimated amortization expense for existing intangible assets for each of the five succeeding fiscal years is as follows ($000):

Year Ending June 30,
Remaining 2013	$	3,163
2014		3,744
2015		3,479
2016		3,411
2017		3,402