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Note 4 - Property and Equipment (Tables)
12 Months Ended
Dec. 31, 2016
Notes Tables  
Property, Plant and Equipment [Table Text Block]
December 31,
 
2016
 
 
2015
 
Land
  $
318,832
    $
281,982
 
Building and improvements
   
611,798
     
527,545
 
Service equipment
   
80,953
     
70,559
 
Furniture, office equipment, signs and fixtures
   
141,248
     
119,250
 
     
1,152,831
     
999,336
 
Less accumulated depreciation
   
(167,300
)
   
(137,853
)
     
985,531
     
861,483
 
Construction in progress
   
20,599
     
15,177
 
    $
1,006,130
    $
876,660