Income Taxes (Deferred tax assets and liabilities) (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
Income Tax Benefit Expenses [Line Items]
Net deferred tax assets	$ 703	$ 880
Valuation allowance	0	0
Net deferred tax assets, Current	703	880
Net deferred tax assets	436	634
Valuation allowance	0	0
Net deferred tax assets, Noncurrent	436	634
Deferred Tax Asset Liability Current [Member]
Income Tax Benefit Expenses [Line Items]
Accounts receivable	26	36
Inventories	364	533
Accrued Liabilities	313	311
Stock based compensation expense	0	0
Goodwill	0	0
R&D credit	0	0
Property, plant and equipment	0	0
Other deferred tax liabilities	0	0
Deferred Tax Asset Liability Noncurrent [Member]
Income Tax Benefit Expenses [Line Items]
Accounts receivable	0	0
Inventories	200	261
Accrued Liabilities	87	86
Stock based compensation expense	154	147
Goodwill	(14)	214
R&D credit	1,214	804
Property, plant and equipment	(503)	(512)
Other deferred tax liabilities	$ (702)	$ (366)