Commitments and Contingencies (Details Textual) $ in Thousands	3 Months Ended
	Sep. 30, 2018 USD ($)
Loss Contingencies [Line Items]
Contingent Liability for Employee Severance Payments	$ 491
Minimum [Member]
Loss Contingencies [Line Items]
Terminated Employees Severance Compensation Period	6 months
Maximum [Member]
Loss Contingencies [Line Items]
Terminated Employees Severance Compensation Period	12 months