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Note 11 - Reserves (Tables)
12 Months Ended
Dec. 31, 2021
Notes Tables  
Summary of Valuation Allowance [Table Text Block]

Description

 

Balance at

Beginning of

Year

  

Increase

(Decrease)

  

Balance at

End of Year

 
  

(in thousands)

 

Allowance for Doubtful Accounts

            

2021

 $220  $(66

)

 $154 

2020

 $35  $185  $220