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Discontinued Operations - Schedule of Financial Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Revenues	$ 1,337	$ 1,085	$ 3,776	$ 3,226
Gross profit	$ 831	$ 629	2,312	1,837
GridSense Inc. [Member] | Discontinued Operations [Member]
Revenues
Gross profit
Income from discontinued operations, net of income taxes				$ 698

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