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Note 3 - Revenue (Tables)
3 Months Ended
Mar. 31, 2020
Notes Tables  
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]
Three Months Ended March 31, 2020
       
Outstanding at January 1, 2020
  $
7,659
 
Increase (decrease) attributed to:
       
Transferred to receivables from contract assets recognized
   
(5,712
)
Product transferred over time
   
4,827
 
Outstanding at March 31, 2020
  $
6,774
 
Disaggregation of Revenue [Table Text Block]
   
Three Months Ended March 31, 2020
 
   
Product/ Service Transferred Over Time
   
Product Transferred at Point in Time
   
Noncash Consideration
   
Total Net Sales by Market
 
Medical
  $
13,703
    $
1,061
    $
697
    $
15,461
 
Industrial
   
6,016
     
970
     
323
     
7,309
 
Aerospace and Defense
   
4,317
     
134
     
219
     
4,670
 
Total net sales
  $
24,036
    $
2,165
    $
1,239
    $
27,440
 
   
Three Months Ended March 31, 2019
 
   
Product/ Service Transferred Over Time
   
Product Transferred at Point in Time
   
Noncash Consideration
   
Total Net Sales by Market
 
Medical
  $
14,495
    $
35
    $
409
    $
14,939
 
Industrial
   
8,140
     
597
     
244
     
8,981
 
Aerospace and Defense
   
4,103
     
20
     
122
     
4,245
 
Total net sales
  $
26,738
    $
652
    $
775
    $
28,165