Segment Reporting (Tables)

6 Months Ended

Dec. 31, 2011

Segment Reporting [Abstract]

Schedule Of Financial Information Of Company's Operations By Segment

	Three Months Ended December 31, 2011
	Infrared Optics		Near- Infrared Optics		Military & Materials			Advanced Products Group		Eliminations			Total
Revenues	$	46,762	$	39,468	$	23,703		$	16,824	$	—		$	126,757
Inter-segment revenues		1,046		190		2,629			1,133		(4,998	)		—
Segment earnings (loss)		11,470		1,684		(386	)		1,470		—			14,238
Interest expense		—		—		—			—		—			(77	)
Other income, net		—		—		—			—		—			1,506
Income taxes		—		—		—			—		—			(2,147	)
Net earnings		—		—		—			—		—			13,520
Depreciation and amortization		2,139		4,349		991			1,043		—			8,522
Segment assets		206,543		277,875		90,573			103,506		—			678,497
Expenditures for property, plant and equipment		2,127		3,011		2,104			3,114		—			10,356
Equity investments		—		—		—			15,938		—			15,938
Goodwill		9,696		54,376		10,399			10,314		—			84,785

	Three Months Ended December 31, 2010
	Infrared Optics		Near- Infrared Optics		Military & Materials		Advanced Products Group		Eliminations			Total
Revenues	$	40,642	$	41,418	$	19,467	$	19,360	$	—		$	120,887
Inter-segment revenues		857		72		1,444		1,010		(3,383	)		—
Segment earnings		9,420		8,068		3,425		3,775		—			24,688
Interest expense		—		—		—		—		—			(25	)
Other expense, net		—		—		—		—		—			(460	)
Income taxes		—		—		—		—		—			(4,948	)
Net earnings		—		—		—		—		—			19,255
Depreciation and amortization		2,065		3,346		622		812		—			6,845
Segment assets		213,072		195,902		71,088		86,773		—			566,835
Expenditures for property, plant and equipment		1,799		3,845		1,441		2,302		—			9,387
Equity investments		—		—		—		15,436		—			15,436
Goodwill		9,800		32,364		13,657		10,314		—			66,135

	Six Months Ended December 31, 2011
	Infrared Optics		Near- Infrared Optics		Military & Materials		Advanced Products Group		Eliminations			Total
Revenues	$	97,558	$	77,578	$	47,362	$	42,632	$	—		$	265,130
Inter-segment revenues		1,704		412		4,381		1,917		(8,414	)		—
Segment earnings		23,827		3,392		2,576		7,478		—			37,273
Interest expense		—		—		—		—		—			(136	)
Other income, net		—		—		—		—		—			3,136
Income taxes		—		—		—		—		—			(8,039	)
Net earnings		—		—		—		—		—			32,234
Depreciation and amortization		4,334		8,564		1,954		1,980		—			16,832
Expenditures for property, plant and equipment		3,827		8,751		4,092		6,398		—			23,068

	Six Months Ended December 31, 2010
	Infrared Optics		Near- Infrared Optics		Military & Materials		Advanced Products Group		Eliminations			Total
Revenues	$	81,868	$	78,363	$	39,602	$	41,188	$	—		$	241,021
Inter-segment revenues		1,371		122		2,785		2,076		(6,354	)		—
Segment earnings		18,068		14,949		7,146		7,186		—			47,349
Interest expense		—		—		—		—		—			(55	)
Other income, net		—		—		—		—		—			1,602
Income taxes		—		—		—		—		—			(11,240	)
Net earnings		—		—		—		—		—			37,656
Depreciation and amortization		4,096		6,758		1,200		1,625		—			13,679
Expenditures for property, plant and equipment		2,585		5,273		2,870		3,940		—			14,668