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Note 11 - Employee Benefits (Tables)
12 Months Ended
Dec. 31, 2020
Notes Tables  
Schedule of Expected Benefit Payments [Table Text Block]
  

2020

  

2019

 

Health benefits, including premiums

 $13,173  $16,228 

401(k) matching

  1,797   2,510 

Deferred bonus plan

  679   727 

Total

 $15,649  $19,465