Income Taxes (Tables)

12 Months Ended

Jun. 30, 2013

Schedule of deferred tax assets and deferred tax liabilities

The tax effects of temporary differences that give rise to significant portions of deferred tax assets and deferred tax liabilities are as follows at June 30:

	2013			2012
Deferred tax assets:
Net operating loss and credit carryforwards	$	35,210,000		$	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		37,608,000			39,211,000
Valuation allowance for deferred tax assets		(37,246,000	)		(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	$	—		$	—