Valuation And Qualifying Accounts (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2012		Jun. 30, 2011		Jun. 30, 2010
Allowance for Doubtful Accounts
Valuation and Qualifying Accounts Disclosure [Line Items]
Beginning Balance	$ 766		$ 1,081		$ 1,029
Charged to Expense	940		(38)		115
Charged to Other Accounts	(18)		(17)		102	[1]
Deduction from Reserves	(152)	[2]	(260)	[2]	(165)	[2]
Ending Balance	1,536		766		1,081
Warranty Reserves
Valuation and Qualifying Accounts Disclosure [Line Items]
Beginning Balance	1,187		1,037		861
Charged to Expense	1,710		1,707		1,612
Charged to Other Accounts					(83)	[3]
Deduction from Reserves	(1,650)		(1,557)		(1,353)
Ending Balance	$ 1,247		$ 1,187		$ 1,037

[1] Primarily relates to allowance for doubtful accounts from the acquisition of Photop, offset by foreign currency translations and transfers to other accounts

[2] Primarily relates to write-offs of accounts receivable.

[3] Primarily relates to allowance for doubtful accounts and warranty reserve transferred from eV PRODUCTS Inc. as the Company retained the accounts receivable, related allowance for doubtful accounts and warranty obligation as part of the sale of eV PRODUCTS Inc.