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Note 13 - Fair Value Measurement (Tables)
12 Months Ended
Dec. 31, 2020
Notes Tables  
Fair Value, by Balance Sheet Grouping [Table Text Block]
New Credit Facility
 
   
Carrying Value
   
Fair Value
 
                 
Notes payable December 31, 2019
  $
70,212
    $
69,932
 
                 
Notes payable December 31, 2020
  $
65,862
    $
65,919