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Note 2 - Revenues (Tables)
12 Months Ended
Dec. 31, 2021
Notes Tables  
Disaggregation of Revenue [Table Text Block]
  

Year Ended December 31,

 
  

2021

  

2020

 

Heavy Fabrications

 $101,994  $155,198 

Gearing

  28,583   25,136 

Industrial Solutions

  15,402   18,299 

Eliminations

  (360)  (137)

Consolidated

 $145,619  $198,496