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Equity (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands |  |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | --- | ---
Apr. 29, 2016 | Aug. 13, 2015 | Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015
Fair value of options granted |  |  |  |  | $ 0.11 |
Stock based compensation expense |  |  | $ 9 | $ 146 | $ 243 | $ 523
Cash settlement price per share |  |  | $ 0.30 |  | $ 0.30 |
Antidilutive securities excluded from computation of diluted net income per share |  |  | 5,012,000 | 5,035,000 | 4,936,000 | 5,003,000
Leap Tide Capital Partners LLC [Member] |  |  |  |  |  |
Vested share rights earned by date of repayment |  |  |  |  | 1,531,396 |
Vested shares converted to common stock |  |  |  |  | 1,531,396 |
Loan and Security Agreement [Member] | Leap Tide Capital Partners LLC [Member] |  |  |  |  |  |
Borrowings |  | $ 2,000 |  |  |  |
Repayment of principal | $ 2,000 |  |  |  |  |
Number of common stock shares issued |  | 850,000 |  |  |  |
Vested share right per month |  | 179,167 |  |  |  |
Warrants [Member] |  |  |  |  |  |
Fair value of warrants granted price per share |  |  |  |  | $ 0.08 |
Selling General and Administrative Expense [Member] |  |  |  |  |  |
Stock based compensation expense |  |  | $ 9 | $ 146 | $ 243 | $ 523
Discontinued Operations [Member] | U.S. Seismic Systems, Inc [Member] |  |  |  |  |  |
Stock based compensation expense |  |  |  | $ 0 |  | $ 6

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