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Revenue (Details Narrative) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 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. |
Revenue | $ 5,087 | $ 4,350
Data costs (COGS) | 1,965 | 1,903
Retained earnings |  | 152
Other current assets | 144 | 91
Capitalized Sales Commissions [Member] |  |
Other current assets | 76 |
Other assets | 67 |
Other Revenue Related to Accessories, Repairs and Other Miscellaneous Charges [Member] |  |
Revenue | 206 | 177
Monitoring Services [Member] |  |
Data costs (COGS) | 445 | 364
Miscellaneous Revenue from Sales of Accessories and Repairs [Member] |  |
Data costs (COGS) | $ 123 | $ 107

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