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Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Jun. 30, 2018 | Jun. 30, 2017
--- | --- | ---
Deferred tax assets: |  |
Federal, state, and foreign net operating loss carryovers | $ 574 | $ 536
Stock option compensation | 1,367 | 1,531
Accrued vacation, allowance for returns, bonuses & other | 2,615 | 3,173
Gross deferred tax asset | 4,556 | 5,240
Deferred tax liabilities: |  |
Patents and trademarks | (145) | (253)
Property & equipment | (823) | (588)
Other | (13) | 0
Gross deferred tax liabilities | (981) | (841)
Less: valuation allowance | (320) | (312)
Deferred tax assets, net | $ 3,255 | $ 4,087

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