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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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