Schedule II - Valuation and Qualifying Accounts (Detail) - Valuation and Qualifying Accounts (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2012		Jun. 30, 2011		Jun. 30, 2010
Allowance for Doubtful Accounts [Member]
Balance Beginning of Period	$ 826		$ 399		$ 532
Additions Charged to Costs and Expenses	360		1,183		424
Additions from Acquired Company	4				9
Deductions	(805)	[1]	(756)	[1]	(566)	[1]
Balance End of Period	385		826		399
Inventory Valuation Reserve [Member]
Balance Beginning of Period	1,813		1,537		1,410
Additions Charged to Costs and Expenses	1,453		1,422		1,517
Additions from Acquired Company					89
Deductions	(1,110)	[1]	(1,146)	[1]	(1,479)	[1]
Balance End of Period	2,156		1,813		1,537
Valuation Allowance of Deferred Tax Assets [Member]
Balance Beginning of Period	4,200		3,355		1,940
Additions Charged to Costs and Expenses	636		845		1,415
Additions from Acquired Company	173
Deductions		[1]		[1]		[1]
Balance End of Period	$ 5,009		$ 4,200		$ 3,355

[1] For Allowance for Doubtful Accounts, deductions are uncollectible accounts charged off, less recoveries.