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Segment Information and Major Customers Expended for Property, Plant and Equipment by Segment (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2017
Segment Reporting Information [Line Items]      
Expended for property, plant and equipment $ 9,335 $ 1,842 [1] $ 1,773 [1]
IoT Products & Services      
Segment Reporting Information [Line Items]      
Expended for property, plant and equipment 8,863 1,773 1,738
IoT Solutions      
Segment Reporting Information [Line Items]      
Expended for property, plant and equipment $ 472 $ 69 $ 35
[1] Prior period information has been restated for the adoption of ASU No. 2014-09, “Revenue from Contracts with Customers (Topic 606)”, which we adopted on October 1, 2018.