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Note 17 - Segment Data (Tables)
12 Months Ended
Dec. 31, 2020
Notes Tables  
Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block]
  

2020

  

2019

  

2018

 

Market

 

Net Sales

  

%

  

Net Sales

  

%

  

Net Sales

  

%

 
                         

Medical

 $120,206   67.0

%

 $128,915   65.0

%

 $110,282   57.9

%

Consumer

  18,263   10.2

%

  17,669   8.9

%

  24,989   13.1

%

Automotive

  14,607   8.1

%

  20,004   10.1

%

  20,022   10.5

%

Aerospace & Defense

  12,624   7.0

%

  13,778   6.9

%

  13,130   6.9

%

Industrial

  7,601   4.2

%

  9,607   4.8

%

  10,579   5.6

%

Electronics

  6,072   3.4

%

  8,408   4.2

%

  11,453   6.0

%

Net Sales

 $179,373   100

%

 $198,381   100

%

 $190,455   100

%