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