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Segment Reporting and Geographic Information - Schedule of Reconciliation of Segment Data to Consolidated Statement Balance Sheet (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Segment Reporting [Abstract]    
Total assets for OmniMetrix subsidiary $ 4,870 $ 3,965
Assets of corporate headquarters 331 1,019
Total consolidated assets $ 5,201 $ 4,984