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Note 6 - Debt (Tables)
12 Months Ended
Dec. 31, 2023
Notes Tables  
Schedule of Debt [Table Text Block]
  

December 31,

 
  

2023

  

2022

 
  

(in thousands)

 

Interest charges

 $1,054  $484 

Weighted average interest rate

  8.9%  6.6%