Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Jun. 30, 2014
Deferred tax assets:
Federal, state, and foreign net operating loss carryovers	$ 656	$ 1,016
Stock option compensation	1,353	1,353
Accrued vacation, allowance for returns, bonuses & other	1,395	572
Gross deferred tax asset	3,404	2,941
Deferred liabilities
Patents and trademarks	(468)	(500)
Change in tax accounting methods	(98)	(198)
Property & equipment	(1,268)	(583)
Gross deferred tax liabilities	(1,834)	(1,281)
Less: valuation allowance	(218)	(217)
Deferred tax assets, net	$ 1,352	$ 1,443