Income Taxes (Schedule Of Deferred Tax Assets And Liabilities) (Details) (USD $)	Jun. 30, 2013	Jun. 30, 2012
Income Taxes [Abstract]
U.S. and foreign net operating loss carryforwards	$ 44,123,000	$ 50,808,000
Book and tax basis differences for property and equipment	448,000	27,000
Bad debt, warranty and inventory reserves	804,000	861,000
Accrued compensation	898,000	1,049,000
Deferred revenue	1,112,000	1,211,000
Research and development tax credit	459,000	347,000
Stock compensation	1,245,000	459,000
Other	1,030,000	1,086,000
Deferred tax assets	50,119,000	55,848,000
Valuation allowance	(49,119,000)	(54,340,000)
Total deferred tax assets	1,000,000	1,508,000
Acquired intangibles	245,000	575,000
Total deferred tax liabilities	245,000	575,000
Deferred income taxes, net	$ 755,000	$ 933,000