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Discontinued Operations (Details Narrative) - USD ($) $ in Thousands |  |  |  |  |  | 12 Months Ended
--- | --- | --- | --- | --- | --- | ---
Jul. 16, 2016 | Jul. 12, 2016 | Apr. 21, 2016 | Sep. 30, 2015 | Jan. 02, 2015 | Dec. 31, 2016 | Dec. 31, 2015
Loan bears interest rate |  |  |  |  |  | 3.15% |
Stock-Based Compensation [Member] |  |  |  |  |  |  |
Stock-based compensation expense included in USSI's net loss |  |  |  |  |  |  | $ 4
GridSense [Member] |  |  |  |  |  |  |
Sale of business assets, gross sale price |  | $ 1,000 |  |  |  |  |
Indemnity escrow |  | 100 |  |  |  |  |
Indemnity escrow to be released on January 7, 2017 |  | 50 |  |  |  |  |
Indemnity escrow to be released on July 7, 2017 |  | 50 |  |  |  |  |
Paid of accrued severance and other payroll costs |  | 240 |  |  |  |  |
Gain on assets sold, net of transaction costs |  | $ 944 |  |  |  |  |
GridSense [Member] | Out Side Creditor [Member] |  |  |  |  |  |  |
Amount of outside creditors claims settled |  |  |  |  |  | $ 459 |
GridSense [Member] | Creditor [Member] |  |  |  |  |  |  |
Disbursed to outside creditors |  |  |  |  |  | 47 |
U.S. Seismic Systems, Inc [Member] |  |  |  |  |  |  |
Percentage of holdings on an as converted basis |  |  |  |  | 95.70% |  |
Invested in common shares |  |  |  | $ 7,584 |  |  |
Cash investment |  |  |  | 5,355 |  |  |
Investment made by Acorn common shares |  |  |  | 2,229 |  |  |
Additional purchase value of preferred stock |  |  |  | 16,750 |  |  |
Loan to USSI |  |  |  | $ 10,058 |  |  |
Loan bears interest rate |  |  |  | 8.00% |  |  |
U.S. Seismic Systems, Inc [Member] | Series A-1 Preferred Stock [Member] |  |  |  |  |  |  |
Preferred stock owned |  |  |  |  | 9,376,401 |  |
GridSense [Member] |  |  |  |  |  |  |
Accrued severance costs |  |  | $ 140 |  |  |  |
Accrual for lease commitment |  |  | $ 100 |  |  |  |
Cash available excluding escrow amounts |  |  |  |  |  | 19 |
Remaining creditor claims |  |  |  |  |  | 314 |
Percentage of borrow against certain accounts receivable | 80.00% |  |  |  |  |  |
Maximum accounts receivable balance borrowing base |  |  |  |  |  | $ 750 |
Line of credit, expiration date |  |  |  |  |  |  | Jul. 16, 2016
Debt interest rate, per month |  |  |  |  |  | 1.25% |
Utilized portion of accounts receivable line |  |  |  |  |  |  | $ 138

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