Commitments And Contingencies (Narrative) (Details)	1 Months Ended		12 Months Ended
	Jul. 31, 2017 USD ($) item	May 31, 2017 USD ($)	Jun. 30, 2018 EUR (€)	Jun. 30, 2018 USD ($)	Jun. 30, 2017 EUR (€)	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2016 EUR (€)	Jun. 30, 2016 USD ($)	Jun. 30, 2015 EUR (€)	Jun. 30, 2015 USD ($)
Loss Contingencies [Line Items]
Rental expenses						$ 943,000	$ 1,097,000	$ 1,007,000
Estimated reserve amount for potential liability related to litigation									€ 227,000	$ 244,000	€ 486,000	$ 522,000
Employment And Withholding Concerns [Member]
Loss Contingencies [Line Items]
Damages paid					€ 112,000	128,000
Employment And Withholding Concerns [Member] | Scenario, Forecast [Member]
Loss Contingencies [Line Items]
Damages paid			€ 115,000	$ 131,000
3CEMS [Member] | Loss on Purchase Commitment [Member]
Loss Contingencies [Line Items]
Accruals related to settlement						$ 1,000,000
Trade Secrets Case [Member] | Attorney Fees [Member]
Loss Contingencies [Line Items]
Damages sought		$ 800,000
Minimum [Member]
Loss Contingencies [Line Items]
Lease term					2 years	2 years
Minimum [Member] | Employment And Withholding Concerns [Member]
Loss Contingencies [Line Items]
Potential financial liability | €											486,000
Minimum [Member] | 3CEMS [Member] | Loss on Purchase Commitment [Member]
Loss Contingencies [Line Items]
Damages sought						$ 4,000,000
Maximum [Member]
Loss Contingencies [Line Items]
Lease term					5 years	5 years
Maximum [Member] | Employment And Withholding Concerns [Member]
Loss Contingencies [Line Items]
Potential financial liability | €											€ 1,000,000
Subsequent Event [Member] | 3CEMS [Member]
Loss Contingencies [Line Items]
Number of payments | item	4
Payment period	10 months
Subsequent Event [Member] | 3CEMS [Member] | Loss on Purchase Commitment [Member]
Loss Contingencies [Line Items]
Number of payments | item	4
Installment amount	$ 250,000
Payment period	10 months