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Note 5 - Property and Equipment (Tables)
3 Months Ended
Mar. 31, 2021
Notes Tables  
Property, Plant and Equipment [Table Text Block]
  

March 31,

  

December 31,

 
  

2021

  

2020

 
         

Structures and displays

 $44,440,750  $42,858,525 
Fiber, towers, and broadband equipment  13,222,378   11,358,650 

Vehicles and equipment

  2,887,970   2,522,810 

Office furniture and equipment

  2,265,098   2,150,729 

Accumulated depreciation

  (11,505,013)  (10,382,442)
         

Total Property and Equipment, net

 $51,311,183  $48,508,272