Income Taxes (Narrative) (Details) (USD $)	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Income Taxes [Line Items]
Tax Credit Carryforward, Amount	$ 4,700,000
Operating Loss Carryforward Related To Exercise Of Employee Stock	6,300,000
Valuation Allowance, Deferred Tax Asset, Change in Amount	961,000	(39,000)	(201,000)
Unrecognized Tax Benefits	1,172,000	1,096,000
Internal Revenue Service (IRS) [Member]
Income Taxes [Line Items]
Operating Loss Carryforwards	16,300,000
Minimum [Member]
Income Taxes [Line Items]
Expiration Dates For Tax Credit Carryforward	2012
Minimum [Member] | Internal Revenue Service (IRS) [Member]
Income Taxes [Line Items]
Operating Loss Carryforwards, Expiration Dates	2021
Open Tax Year	2009
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	2031
Maximum [Member] | Internal Revenue Service (IRS) [Member]
Income Taxes [Line Items]
Operating Loss Carryforwards, Expiration Dates	2032
Open Tax Year	2012
Maximum [Member] | German Tax Authority [Member]
Income Taxes [Line Items]
Open Tax Year	2012
Credits Expiring 2012 to 2031 [Member]
Income Taxes [Line Items]
Tax Credit Carryforward, Amount	$ 4,400,000