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13. Benefit Contribution Plan | 12 Months Ended
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Dec. 31, 2016
Benefit Contribution Plan [Abstract] |
Benefit Contribution Plan | We have a defined contribution salary deferral plan covering substantially all employees under Section 401(k) of the Internal Revenue Code. We contribute an amount equal to 10 cents for each dollar contributed by each employee up to a maximum of 5% of each employee’s compensation. We recognized expense for contributions to the plans of $62 and $84 for fiscal years 2016 and 2015, respectively.

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