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21. Shareholders' Equity (Details Narrative) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 29, 2018 | Dec. 30, 2017 | Dec. 31, 2016
Common Stock, issued shares (in shares) | 8,472 | 6,875 |
Common Stock, outstanding shares (in shares) | 8,472 | 6,875 |
Options outstanding | 505 | 627 | 710
Weighted average fair value per option granted | $ 1.12 |  |
Share based compensation expense | $ 0 | $ 32 |
Aggregate intrinsic value per share outstanding | $ 0.51 |  |
Warrants outstanding | 24 | 24 |
Warrant exercise price | $ 3.55 | $ 3.55 |
Warrant expiration date |  | May 31, 2020 |
Series A Preferred Stock [Member] |  |  |
Stock issued, Shares | 288,588 |  |
2016 Plan [Member] |  |  |
Options authorized for issuance | 2,000 |  |
Options outstanding | 20 |  |
2011 Plan [Member] |  |  |
Options outstanding | 485 |  |
Contractor [Member] |  |  |
Stock issued for services, shares | 1,390 |  |
Stock issued for services, value | $ 920 |  |
Energy Efficiency Investments [Member] |  |  |
Warrants issued | 167 |  |
Fair value of warrants issued | $ 106 |  |

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