Schedule of Interest and Other Income (Schedule of Interest and other income) (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Other Income And Expenses [Abstract]
Dividends	$ 257	$ 228	$ 139
Interest	237	185	184
Foreign government subsidies received	38	17	41
Joint venture equity earnings	2,024	1,790	1,598
Foreign currency losses	(102)	(105)	(74)
Rental income	144	82
Miscellaneous income	(96)	59	113
Interest and other income	$ 2,502	$ 2,256	$ 2,001