Notes Payable	9 Months Ended
Sep. 30, 2018
Debt Disclosure [Abstract]
Notes Payable	6. Notes Payable Senior Secured Term Note On March 23, 2017, the Company and its subsidiaries, M&I Electric Industries, Inc. and South Coast Electric Systems, LLC (collectively, the “Sellers”) issued and sold to HD Special-Situations III, L.P. (the “Purchaser”) a $7.00 million principal amount Senior Secured Term Note (the “Note”) bearing interest at 11.5% per annum with principal of $0.50 million due and paid on June 30, 2017, and the remaining balance due 48 months after issuance for cash at par pursuant to a Note Purchase Agreement (the “Purchase Agreement”). Proceeds from the sale of the Note were used to fully repay and terminate the Company’s prior revolving credit facilities with approximately $1.00 million being available for the Company’s working capital and general business purposes. On November 13, 2017, the Company entered into an agreement modifying the terms of its Senior Secured Term Note. The modification included revisions to the original revenue and EBITDA covenants along with the requirement of minimum principal reductions of $30,000 per month beginning in April 2018. In consideration for the modified terms, the Company issued 500,000 warrants to purchase the Company’s common stock at an exercise price of $2.26 which expire in November 2023. The fair value of the warrants of approximately $0.37 million was recognized as additional paid-in capital with a corresponding discount to long-term notes payable. The discount is accreted to interest expense through the Note’s maturity. During the quarter ended September 30, 2018, the Company paid off the debt in full. Total interest expense recognized for the three months ended September 30, 2018 and 2017 was $0.08 million and $0.22 million, respectively. Total interest expense recognized for the nine months ended September 30, 2018 and 2017 was $0.64 million and $0.54 million, respectively. Interest expense related to the Note has been allocated to discontinued operations because the debt is required to be repaid as a result of the disposal transaction discussed in Note 11. On March 29, 2018, the Company’s subsidiary, M&I Brazil, extended the terms of its Loan Agreement with the former chairman of AETI to June 7, 2019. The Loan Agreement provides M&I Brazil with a $0.30 million loan facility of which $0.20 million is drawn and is outstanding as of September 30, 2018 and with any balance outstanding due June 7, 2019. Under the loan agreement, the interest rate on the loan facility is 10.0%, per annum, payable each quarter. The loan facility is secured by the assets held by M&I Brazil.

6. Notes Payable

Senior Secured Term Note

On March 23, 2017, the Company and its subsidiaries, M&I Electric Industries, Inc. and South Coast Electric Systems, LLC (collectively, the “Sellers”) issued and sold to HD Special-Situations III, L.P. (the “Purchaser”) a $7.00 million principal amount Senior Secured Term Note (the “Note”) bearing interest at 11.5% per annum with principal of $0.50 million due and paid on June 30, 2017, and the remaining balance due 48 months after issuance for cash at par pursuant to a Note Purchase Agreement (the “Purchase Agreement”). Proceeds from the sale of the Note were used to fully repay and terminate the Company’s prior revolving credit facilities with approximately $1.00 million being available for the Company’s working capital and general business purposes.

On November 13, 2017, the Company entered into an agreement modifying the terms of its Senior Secured Term Note. The modification included revisions to the original revenue and EBITDA covenants along with the requirement of minimum principal reductions of $30,000 per month beginning in April 2018. In consideration for the modified terms, the Company issued 500,000 warrants to purchase the Company’s common stock at an exercise price of $2.26 which expire in November 2023.

The fair value of the warrants of approximately $0.37 million was recognized as additional paid-in capital with a corresponding discount to long-term notes payable. The discount is accreted to interest expense through the Note’s maturity.

During the quarter ended September 30, 2018, the Company paid off the debt in full. Total interest expense recognized for the three months ended September 30, 2018 and 2017 was $0.08 million and $0.22 million, respectively. Total interest expense recognized for the nine months ended September 30, 2018 and 2017 was $0.64 million and $0.54 million, respectively. Interest expense related to the Note has been allocated to discontinued operations because the debt is required to be repaid as a result of the disposal transaction discussed in Note 11.

On March 29, 2018, the Company’s subsidiary, M&I Brazil, extended the terms of its Loan Agreement with the former chairman of AETI to June 7, 2019. The Loan Agreement provides M&I Brazil with a $0.30 million loan facility of which $0.20 million is drawn and is outstanding as of September 30, 2018 and with any balance outstanding due June 7, 2019. Under the loan agreement, the interest rate on the loan facility is 10.0%, per annum, payable each quarter. The loan facility is secured by the assets held by M&I Brazil.