Goodwill And Intangible Assets (Tables)

3 Months Ended

Sep. 30, 2011

Goodwill And Intangible Assets [Abstract]

Schedule Of Changes In Carrying Amount Of Goodwill

	Three Months Ended September 30, 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		—			21,202		—		—		21,202
Foreign currency translation		(204	)		573		—		—		369
Balance – end of period	$	9,834		$	55,286	$	10,399	$	10,314	$	85,833

Schedule Of Gross Carrying Amount And Accumulated Amortization

	September 30, 2011							June 30, 2011
	Gross Carrying Amount		Accumulated Amortization			Net Book Value		Gross Carrying Amount		Accumulated Amortization			Net Book Value
Patents	$	23,104	$	(6,330	)	$	16,774	$	16,009	$	(5,843	)	$	10,166
Trademarks		11,135		(832	)		10,303		11,074		(811	)		10,263
Customer Lists		21,280		(6,415	)		14,865		14,327		(6,024	)		8,303
Other		1,387		(1,387	)		—		1,387		(1,387	)		—
Total	$	56,906	$	(14,964	)	$	41,942	$	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	$	3,074
2013		3,756
2014		3,354
2015		3,098
2016		3,030