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Note 9 - Fair Value Measurements (Tables)
3 Months Ended
Mar. 31, 2022
Notes Tables  
Fair Value, Liabilities Measured on Recurring Basis [Table Text Block]
  

March 31, 2022

 
  

Level 1

  

Level 2

  

Level 3

  

Total

 

Liabilities measured on a recurring basis:

                

Interest rate swap

 $  $  $  $ 

Total liabilities at fair value

 $  $  $  $ 
  

December 31, 2021

 
  

Level 1

  

Level 2

  

Level 3

  

Total

 

Liabilities measured on a recurring basis:

                

Interest rate swap

 $  $27  $  $27 

Total liabilities at fair value

 $  $27  $  $27