Quarterly report pursuant to Section 13 or 15(d)

3. Comprehensive Income (Details Narrative)

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3. Comprehensive Income (Details Narrative) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jul. 01, 2017
Jun. 30, 2018
Jul. 01, 2017
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]        
Comprehensive income (loss) $ (1,420) $ 2,086 $ (2,917) $ 4,307