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Note 10 - Reportable Operating Segments (Tables)
3 Months Ended
Mar. 31, 2019
Notes Tables  
Schedule of Segment Reporting Information, by Segment [Table Text Block]
   
Three Months
 
   
Ended March 31,
 
   
2019
   
2018
 
   
(in thousands)
 
Operating Segment Revenues
               
Real estate
  $
157
    $
36
 
Leasing
   
1,677
     
1,495
 
Utilities
   
748
     
704
 
Resort amenities and other
   
261
     
307
 
Total Operating Segment Revenues
  $
2,843
    $
2,542
 
Operating Segment Income (Loss)
               
Real estate
  $
(107
)   $
(30
)
Leasing
   
1,109
     
917
 
Utilities
   
147
     
183
 
Resort amenities and other
   
(50
)    
(46
)
Total Operating Segment Income
  $
1,099
    $
1,024