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Revenues - Schedule of Reconciliation of Contract Liabilities with Customers (Details)
$ in Thousands
12 Months Ended
Sep. 30, 2019
USD ($)
Contract liabilities with customers beginning $ 134
Consideration Received 1,256
Recognized in Revenue (1,307)
Contract liabilities with customers ending 83
Ad Revenue [Member]  
Contract liabilities with customers beginning 126
Consideration Received 602
Recognized in Revenue (652)
Contract liabilities with customers ending 76
Expo Revenue [Member]  
Contract liabilities with customers beginning
Consideration Received 602
Recognized in Revenue (602)
Contract liabilities with customers ending
Other [Member]  
Contract liabilities with customers beginning 8
Consideration Received 52
Recognized in Revenue (53)
Contract liabilities with customers ending $ 7