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Segment Information (Details) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 31, 2019 USD ($) | Mar. 31, 2018 USD ($) | Mar. 31, 2019 USD ($) segment | Mar. 31, 2018 USD ($) | [1]
Segment Reporting Information [Line Items] |  |  |  |  |
Number of Reportable Segments | segment |  |  |  | 2 |
Total Revenue | $ 65,764 | $ 54,548 | [1] | $ 128,077 | $ 99,503
Operating income (loss) | 785 | 818 | [1] | 6,343 | (1,181)
Depreciation and amortization | 3,153 | 3,380 |  | 6,826 | 5,833
IoT Products & Services Segment |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total Revenue | 56,039 | 49,825 |  | 109,333 | 90,705
Operating income (loss) | 3,450 | 4,689 |  | 10,852 | 5,953
Depreciation and amortization | 1,378 | 1,729 |  | 3,320 | 2,578
IoT Solutions Segment |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total Revenue | 9,725 | 4,723 |  | 18,744 | 8,798
Operating income (loss) | (2,665) | (3,871) |  | (4,509) | (7,134)
Depreciation and amortization | $ 1,775 | $ 1,651 |  | $ 3,506 | $ 3,255
[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.

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