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Note 10 - Inventory (Tables)
12 Months Ended
Dec. 31, 2021
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
  

December 31,

 

(in thousands)

 

2021

  

2020

 
         

Total inventory

  13,474   11,122 

Allowance for obsolescence

  (313)  (260)

Inventory, net of allowance

 $13,161  $10,862