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Note 11 - Costs to Obtain and Fulfill a Contract (Tables)
3 Months Ended
Mar. 31, 2022
Notes Tables  
Capitalized Contract Cost [Table Text Block]
  March 31, 2022 
     

Balance, beginning of period

 $112,711 

Deferral of costs

  45,132 

Recognized costs

  (43,183)

Balance, end of period

 $114,660