Quarterly report pursuant to Section 13 or 15(d)

7. Deposits and other assets (Details)

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7. Deposits and other assets (Details) - USD ($)
$ in Thousands
Jul. 01, 2017
Dec. 31, 2016
Assets, Noncurrent [Abstract]    
Deposits $ 578 $ 453
Other 236 104
Recycling contract, net 19 19
Goodwill 38 38
Total other assets $ 871 $ 614