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Note 5 - Property and Equipment (Tables)
9 Months Ended
Sep. 30, 2020
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   

September 30,

   

December 31,

 
   

2020

   

2019

 
                 

Structures and displays

  $ 42,321,894     $ 41,320,458  
Fiber, towers, and broadband equipment     5,170,038       -  

Vehicles and equipment

    1,920,392       1,245,210  

Office furniture and equipment

    1,416,268       990,810  

Accumulated depreciation

    (9,449,254 )     (6,731,459 )
                 

Total Property and Equipment, net

  $ 41,379,338     $ 36,825,019