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Note 12 - Operating Leases (Tables)
12 Months Ended
Dec. 31, 2021
Notes Tables  
Lessee, Operating Lease, Maturity, Net of Sublease [Table Text Block]

Year ending December 31,

    
     

2022

 $406,000 

2023

  302,000 

2024

  58,000 
     
  $766,000