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Note 7 - Segment Reporting (Tables)
12 Months Ended
Dec. 31, 2020
Notes Tables  
Schedule of Segment Reporting Information, by Segment [Table Text Block]
   
Years Ended December 31,
 
                 
   
2020
   
2019
 
Identifiable Assets, net of accumulated depreciation
               
Timber
  $
2,196,942
    $
2,188,594
 
General corporate assets
   
14,119,755
     
13,673,936
 
Total
   
16,316,697
     
15,862,530
 
                 
Capital expenditures:
               
Timber
   
9,321
     
26,815
 
Surface
   
-
     
-
 
General corporate assets
   
-
     
-
 
Total segment costs and expenses
  $
9,321
    $
26,815
 
                 
Depreciation and depletion
               
Oil and gas
   
-
     
-
 
Timber
   
974
     
611
 
General corporate assets
   
2,303
     
1,751
 
Total
  $
3,277
    $
2,362
 
   
Years Ended December 31,
 
   
2020
   
2019
 
Revenues:
               
Oil and gas
  $
257,247
    $
500,426
 
Timber sales
   
134,720
     
72,847
 
Surface revenue
   
279,977
     
237,998
 
Total segment revenues
   
671,944
     
811,271
 
                 
Cost and expenses:
               
Oil and gas costs
   
29,379
     
57,454
 
Timber costs
   
9,409
     
21,144
 
Surface costs
   
1,154
     
1,274
 
Total segment costs and expenses
   
39,942
     
79,872
 
                 
Net income from operations:
               
Oil and gas
   
227,868
     
442,972
 
Timber
   
125,311
     
51,703
 
Surface
   
278,823
     
236,724
 
Total segment net income from operations
   
632,002
     
731,399
 
Unallocated other income (expense) before income taxes
   
(193,778
)    
(430,211
)
Income before income taxes
  $
438,224
    $
301,188