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Income Taxes (Details) - USD ($) | Jun. 30, 2015 | Jun. 30, 2014
--- | --- | ---
Deferred Tax Assets: |  |
Net operating loss and credit carryforwards | $ 33,279,000 | $ 33,098,000
Intangible assets | 6,000 | 75,000
Capital loss and R&D credits | 1,500,000 | 1,454,000
Research development expenses | 657,000 | 639,000
Inventory | 135,000 | 128,000
Accrued expenses and other | 306,000 |
Gross deferred tax assets | 35,883,000 | 35,394,000
Valuation allowance for deferred tax assets | (35,789,000) | (35,136,000)
Total deferred tax assets | 94,000 | 258,000
Deferred Tax Liabilities: |  |
Depreciation and other | (94,000) | (258,000)
Total deferred tax liabilities | $ (94,000) | $ (258,000)

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