Goodwill And Intangible Assets (Tables)

6 Months Ended

Dec. 31, 2011

Goodwill And Intangible Assets [Abstract]

Schedule Of Changes In Carrying Amount Of Goodwill

	Six Months Ended December 31, 2011
	Infrared Optics			Near-Infrared Optics		Military & Materials		Advanced Products Group		Total
Balance – beginning of period	$	10,038		$	33,511	$	10,399	$	10,314	$	64,262
Goodwill acquired – Aegis		—			20,016		—		—		20,016
Foreign currency translation		(342	)		849		—		—		507
Balance – end of period	$	9,696		$	54,376	$	10,399	$	10,314	$	84,785

Schedule Of Gross Carrying Amount And Accumulated Amortization

	December 31, 2011							June 30, 2011
	Gross Carrying Amount		Accumulated Amortization			Net Book Value		Gross Carrying Amount		Accumulated Amortization			Net Book Value
Patents	$	21,502	$	(6,751	)	$	14,751	$	16,009	$	(5,843	)	$	10,166
Trademarks		13,187		(851	)		12,336		11,074		(811	)		10,263
Customer Lists		22,652		(6,920	)		15,732		14,327		(6,024	)		8,303
Other		1,387		(1,387	)		—		1,387		(1,387	)		—
Total	$	58,728	$	(15,909	)	$	42,819	$	42,797	$	(14,065	)	$	28,732

Schedule Of Estimated Amortization Expense For Existing Intangible Assets For Each Of The Five Succeeding Years

Year Ending June 30,
Remaining 2012	$	2,107
2013		3,749
2014		3,371
2015		3,115
2016		3,048