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Note 7 - Intangible Assets
 12 Months Ended
Dec. 31, 2018
Notes to Financial Statements  
Intangible Assets Disclosure [Text Block]
NOTE
7.
INTANGIBLE ASSETS
 
Intangible assets consist of the following:
 
   
December 31, 2018
  
December 31, 2017
   
 
 
 
  
Accumulated
 
 
 
 
  
 
 
 
  
Accumulated
 
 
 
 
   
Cost
 
Amortization
 
Balance
 
Cost
 
Amortization
 
Balance
                                                 
Customer relationships
   $
32,638,900
     $
(8,326,564
 )   $
24,312,336
     $
8,132,900
     $
(2,970,533
 )   $
5,162,367
  
Permits, licenses, and lease acquisition costs
    
9,599,621
      
(559,285
 )    
9,040,336
      
2,184,106
      
(178,835
 )    
2,005,271
  
Site location
    
849,347
      
(80,216
 )    
769,131
      
849,347
      
(23,593
 )    
825,754
  
Noncompetition agreements
    
614,000
      
(145,517
 )    
468,483
      
285,000
      
(66,417
 )    
218,583
  
Trade names and trademarks
    
722,200
      
(195,417
 )    
526,783
      
722,200
      
(112,250
 )    
609,950
  
Technology
    
138,000
      
(122,657
 )    
15,343
      
138,000
      
(76,662
 )    
61,338
  
Nonsolicitation agreement
    
28,000
      
(28,000
 )    
-
      
28,000
      
(28,000
 )    
-
  
Favorable leases
    
847,000
      
(35,291
 )    
811,709
      
-
      
-
      
-
  
Easements
    
1,088,413
      
-
      
1,088,413
      
466,360
      
-
      
466,360
  
                                                 
Total
   $
46,525,481
     $
(9,492,947
 )   $
37,032,534
     $
12,805,913
     $
(3,456,290
 )   $
9,349,623
  
 
The future amortization associated with the intangible assets is as follows:
 
   
December 31,
  
 
 
 
  
 
 
 
   
2019
  
2020
  
2021
  
2022
  
2023
  
Thereafter
  
Total
                                                         
Customer relationships
   $
10,167,291
     $
8,750,949
     $
5,394,096
     $
-
     $
-
     $
-
     $
24,312,336
  
Permits, licenses, and lease acquisition costs
    
867,542
      
867,542
      
867,542
      
867,542
      
867,542
      
4,702,626
      
9,040,336
  
Site location
    
56,623
      
56,623
      
56,623
      
56,623
      
56,623
      
486,016
      
769,131
  
Noncompetition agreements
    
122,800
      
115,217
      
98,800
      
87,966
      
43,700
      
-
      
468,483
  
Trade names and trademarks
    
72,483
      
64,900
      
64,900
      
64,900
      
64,900
      
194,700
      
526,783
  
Technology
    
15,343
      
-
      
-
      
-
      
-
      
-
      
15,343
  
Favorable leases
    
84,700
      
84,700
      
84,700
      
84,700
      
84,700
      
388,209
      
811,709
  
                                                         
Total
   $
11,386,782
     $
9,939,931
     $
6,566,661
     $
1,161,731
     $
1,117,465
     $
5,771,551
     $
35,944,121
  
 
Amortization expense for the year ended
December 31, 2018
and
2017
was
$6,036,657
and
$2,410,081,
respectively.
 
Future Amortization
 
The weighted average amortization period, in months, for intangible assets is as follows:
 
Customer relationships
    
27
  
Permits, licenses, and lease acquisition costs
    
125
  
Site location
    
163
  
Noncompetition agreements
    
46
  
Trade names and trademarks
    
62
  
Technology
    
4
  
Favorable leases
    
115