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Discontinued Operations (Tables)
3 Months Ended
Mar. 31, 2020
Discontinued Operations and Disposal Groups [Abstract]  
Discontinued operations results of operations

      Three months  
      ended  
      March 31, 2019  
         
Lease revenue     238  
           
Cost of operations:          
     Depreciation, depletion and amortization       29  
     Operating expenses       95  
     Property taxes       20  
     Management company indirect       —    
     Corporate expenses       —    
Total cost of operations       144  
           
Total operating profit       94  
           
Interest expense       —    
Gain on sale of buildings       23  
           
Income before income taxes       117  
Provision for income taxes       31  
           
Income from discontinued operations     86  
           
Earnings per common share:          
 Income from discontinued operations-          
    Basic       0.01  
    Diluted       0.01