Net Sales by Geographic Region (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 72,822	$ 55,882
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	43,407	34,074
Markets outside the United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 29,415	$ 21,808