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Note 15 - Commitments and Contingencies (Tables)
3 Months Ended
Mar. 31, 2022
Notes Tables  
Financing Receivable, Current, Allowance for Credit Loss [Table Text Block]
  

For the Three Months Ended March 31,

 
  

2022

  

2021

 

Balance at beginning of period

 $47  $473 

Bad debt expense

     5 

Write-offs

  (23)  (222)

Other adjustments

     (1)

Balance at end of period

 $24  $255