Revenue (Details Narrative) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
Sep. 30, 2018	Dec. 31, 2017
Sale of equipment estimated life	3 years	2 years
Prepayment of monitoring fees	Revenues from the prepayment of monitoring fees (generally paid twelve months in advance) are initially recorded as deferred revenue upon receipt of payment from the customer and then amortized to revenue over the monitoring service period.
Retained earnings		$ 152
Other current assets	$ 200	$ 91
Capitalized Sales Commissions [Member]
Other current assets	117
Other assets	$ 41

Revenues from the prepayment of monitoring fees (generally paid twelve months in advance) are initially recorded as deferred revenue upon receipt of payment from the customer and then amortized to revenue over the monitoring service period.

$ 200

$ 91

Other current assets

117