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Note 12 - Debt (Tables)
3 Months Ended
Apr. 01, 2018
Notes Tables  
Schedule of Long-term Debt Instruments [Table Text Block]
   
April 1,
   
December 31,
 
   
2018
   
2017
 
   
(Unaudited)
   
 
 
 
                 
Current:
               
Current portion of capital lease obligation
  $
516
    $
829
 
                 
Long Term:
               
Note payable – related party
  $
6,500
    $
6,500
 
Capital lease obligation
   
3,286
     
3,397
 
Less unamortized debt issuance and modification costs
   
(62
)    
(65
)
Long term debt net of unamortized debt costs
  $
9,724
    $
9,832