The value of previously forfeited matching contributions reinstated.

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Amount of cost for defined contribution plan.

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Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

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Pensions and Other Postretirement Benefits (Details Textual) - USD ($) $ in Thousands	1 Months Ended		12 Months Ended			14 Months Ended
	Jun. 30, 2017	Aug. 21, 2013	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016	Aug. 20, 2013
Defined Contribution Plan Disclosure [Line Items]
Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax, Total	$ 1,345			$ 1,345	$ 1,637
Deferred Compensation Arrangement with Individual, Forfeited Matching Contributions Reinstated	$ 77
Scenario, Forecast [Member]
Defined Contribution Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Contributions in Current Fiscal Year, Total			$ 13
Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax, Total			$ 62
Foreign Pension Plans [Member]
Defined Contribution Plan Disclosure [Line Items]
Defined Contribution Plan, Cost Recognized				$ 35	$ 43
Foreign Pension Plans [Member] \| Minimum [Member]
Defined Contribution Plan Disclosure [Line Items]
Defined Contribution Plan, Employer Matching Contribution, Percent of Match				4.00%
Foreign Pension Plans [Member] \| Maximum [Member]
Defined Contribution Plan Disclosure [Line Items]
Defined Contribution Plan, Employer Matching Contribution, Percent of Match					7.00%
United States Defined Contribution Plan [Member]
Defined Contribution Plan Disclosure [Line Items]
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay		5.00%				5.00%
Defined Contribution Plan, Employer Matching Contribution, Percent of Match		50.00%				25.00%
Defined Contribution Plan, Cost Recognized				$ 272	$ 279