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Note 11 - Other Assets (Tables)
12 Months Ended
Dec. 31, 2021
Notes Tables  
Schedule of Other Assets, Noncurrent [Table Text Block]
  

December 31,

 
  

2021

  

2020

 
         

Utility deposits

 $14  $14 

Prepaid lease costs and receivables- long term

  292   237 

Total

  306   251