Income Taxes (Narrative) (Details) (USD $)	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Operating Loss Carryforwards [Line Items]
Deferred income taxes, net	$ 755,000	$ 933,000
Deferred tax assets, current	618,000
Deferred tax assets, noncurrent	137,000
U.S. Federal net operating loss carryforwards, income tax purposes	97,200,000
Net operating loss carryforwards, amount to expire	0
Operating loss carryforward	55,200,000
Alternative minimum tax credit	319,000
Research and development credit carryforward	140,000
U.S. Federal Tax net operating loss carryforwards	97,200,000
Net operating loss	11,000,000
Research and developement credits	140,000
Cash and cash equivalents	27,927,000	29,613,000	27,814,000	31,364,000
Valuation allowances for deferred tax assets	49,119,000	54,340,000
Change in valuation allowance	5,221,000
Increase due to creation of deferred tax assets	1,412,000
Decrease due to expiration and true-ups of domestic net operating loss carryforwards	4,799,000
Increase due to equitable adjustment of stock option exercise prices	653,000
Increase due to miscellaneous true-ups of prior year deferred tax amounts	115,000
Decrease due to exchange rate changes and the effect of unrealized gains/losses	222,000
Unrecognized tax benefits	154,000
Interest	16,000
Penalties	0
Accrued interest	215,000	199,000
Accrued penalties	88,000	88,000
Settlements
Foreign Subsidiaries [Member]
Operating Loss Carryforwards [Line Items]
Cash and cash equivalents	1,819,000
Foreign [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforward	$ 32,300,000
Research And Development [Member]
Operating Loss Carryforwards [Line Items]
Carryforward period	20 years