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Income Taxes (Details) (USD $) | Jun. 30, 2013 | Jun. 30, 2012
--- | --- | ---
Deferred Tax Assets: |  |
Net operating loss and credit carryforwards | $ 35,198,000 | $ 36,606,000
Intangible assets | 148,000 | 248,000
Capital loss and R&D credits | 1,442,000 | 1,496,000
Research development expenses | 652,000 | 694,000
Inventory | 100,000 | 57,000
Accrued expenses and other | 56,000 | 110,000
Gross deferred tax assets | 37,596,000 | 39,211,000
Valuation allowance for deferred tax assets | (37,234,000) | (38,800,000)
Total deferred tax assets | 362,000 | 411,000
Deferred Tax Liabilities: |  |
Depreciation and other | (362,000) | (411,000)
Net deferred tax liability |  |

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