Segment Reporting and Geographic Information (Details 1) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 30,732	$ 31,387
UK
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	18,591	20,493
Italy [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	5,125	4,300
Greece [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	4,817	4,391
Rest of World [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 2,199	$ 2,203