Income Taxes (Narrative) (Details) (USD $)	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Income Taxes [Line Items]
Deferred Tax Assets, Tax Credit Carryforwards	$ 4,866,000	$ 4,685,000	$ 4,486,000
Tax Credit Carryforward, Amount	4,600,000
Operating Loss Carryforward Related To Exercise Of Employee Stock	6,700,000
Valuation Allowance, Deferred Tax Asset, Change in Amount	(467,000)	961,000	(39,000)
Unrecognized Tax Benefits	1,237,000	1,172,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	1,200,000
Internal Revenue Service (IRS) [Member]
Income Taxes [Line Items]
Operating Loss Carryforwards	$ 19,700,000
Minimum [Member]
Income Taxes [Line Items]
Expiration Dates For Tax Credit Carryforward	2013
Minimum [Member] | Internal Revenue Service (IRS) [Member]
Income Taxes [Line Items]
Operating Loss Carryforwards, Expiration Dates	2022
Open Tax Year	2010
Minimum [Member] | German Tax Authority [Member]
Income Taxes [Line Items]
Open Tax Year	2011
Maximum [Member]
Income Taxes [Line Items]
Expiration Dates For Tax Credit Carryforward	2032
Maximum [Member] | Internal Revenue Service (IRS) [Member]
Income Taxes [Line Items]
Operating Loss Carryforwards, Expiration Dates	2033
Open Tax Year	2013
Maximum [Member] | German Tax Authority [Member]
Income Taxes [Line Items]
Open Tax Year	2013