Debt	12 Months Ended
Dec. 31, 2018
Debt Disclosure [Abstract]
Debt	NOTE 9—DEBT (a) OmniMetrix In February 2016, OmniMetrix signed a Loan and Security Agreement with a lender providing OmniMetrix with access to accounts receivable formula-based financing of up to $500. In connection with this financing arrangement, OmniMetrix granted the lender a security interest in OmniMetrix’s receivables, inventory and certain other assets. Debt incurred under this financing arrangement bore interest at the greater of prime (3.75% at December 31, 2016) plus 2% or 6% per year. In addition, OmniMetrix was to pay a monthly service charge of 1.125% of the average aggregate principal amount outstanding for the prior month, for a current effective rate of interest on advances of 19.5%. In September 2016, the abovementioned Loan and Security Agreement was amended to reflect a reduced monthly service charge of 1.0% and modified formula determining the amount available from 80% of eligible hardware invoices and 40% of eligible monitoring invoices to 75% of all eligible invoices. In return, OmniMetrix agreed to maintain a minimum loan balance of $150 in its line-of-credit with the lender for a minimum of one year beginning October 1, 2016. In October 2017, OmniMetrix renewed its Loan and Security Agreement providing OmniMetrix with access to accounts receivable formula-based financing of the lesser of 75% of eligible receivables or $1,000. Debt incurred under this financing arrangement bears interest at the greater of prime (4.50% at December 31, 2017) plus 2% or 6% per year. In addition, OmniMetrix is to pay a monthly service charge of 0.9% of the average aggregate principal amount outstanding for the prior month, for a current effective rate of interest on advances of 17.3%. OmniMetrix also agreed to continue to maintain a minimum loan balance of $150 in its line-of-credit with the lender for a minimum of one year beginning November 1, 2017. The line-of-credit expired in accordance with its terms on October 31, 2018 and OmniMetrix did not renew at that time. See Note 18, Subsequent Events, for recent update. OmniMetrix accounts receivable payments were applied to the outstanding balance until it was paid in full on November 6, 2018. OmniMetrix had an outstanding balance of $0 and $313 as of December 31, 2018 and 2017, respectively, pursuant to the Loan and Security Agreement.

Debt

12 Months Ended

Dec. 31, 2018

NOTE 9—DEBT

(a) OmniMetrix

In February 2016, OmniMetrix signed a Loan and Security Agreement with a lender providing OmniMetrix with access to accounts receivable formula-based financing of up to $500. In connection with this financing arrangement, OmniMetrix granted the lender a security interest in OmniMetrix’s receivables, inventory and certain other assets. Debt incurred under this financing arrangement bore interest at the greater of prime (3.75% at December 31, 2016) plus 2% or 6% per year. In addition, OmniMetrix was to pay a monthly service charge of 1.125% of the average aggregate principal amount outstanding for the prior month, for a current effective rate of interest on advances of 19.5%.

In September 2016, the abovementioned Loan and Security Agreement was amended to reflect a reduced monthly service charge of 1.0% and modified formula determining the amount available from 80% of eligible hardware invoices and 40% of eligible monitoring invoices to 75% of all eligible invoices. In return, OmniMetrix agreed to maintain a minimum loan balance of $150 in its line-of-credit with the lender for a minimum of one year beginning October 1, 2016.

In October 2017, OmniMetrix renewed its Loan and Security Agreement providing OmniMetrix with access to accounts receivable formula-based financing of the lesser of 75% of eligible receivables or $1,000. Debt incurred under this financing arrangement bears interest at the greater of prime (4.50% at December 31, 2017) plus 2% or 6% per year. In addition, OmniMetrix is to pay a monthly service charge of 0.9% of the average aggregate principal amount outstanding for the prior month, for a current effective rate of interest on advances of 17.3%. OmniMetrix also agreed to continue to maintain a minimum loan balance of $150 in its line-of-credit with the lender for a minimum of one year beginning November 1, 2017. The line-of-credit expired in accordance with its terms on October 31, 2018 and OmniMetrix did not renew at that time. See Note 18, Subsequent Events, for recent update. OmniMetrix accounts receivable payments were applied to the outstanding balance until it was paid in full on November 6, 2018.

OmniMetrix had an outstanding balance of $0 and $313 as of December 31, 2018 and 2017, respectively, pursuant to the Loan and Security Agreement.