Quarterly report pursuant to Section 13 or 15(d)

11. Property and Equipment (Details Narrative)

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11. Property and Equipment (Details Narrative) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jul. 01, 2017
Jun. 30, 2018
Jul. 01, 2017
Property, Plant and Equipment [Abstract]        
Depreciation and amortization expense $ 59 $ 263 $ 120 $ 520