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Note 3 - Income Taxes (Tables)
12 Months Ended
Dec. 31, 2015
Notes Tables  
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
   
2015
   
2014
 
   
Current
   
Non-Current
   
Current
   
Non-Current
 
                                 
Deferred tax assets
  $ --     $ --     $ --     $ --  
Deferred tax liabilities
    --       (292,767 )     --       (224,426 )
    $ --     $ (292,767 )   $ --     $ (224,426 )
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
   
20
15
   
20
14
 
Income tax on income before extraordinary item:
               
Tax at statutory rates
  $ 229,094     $ 654,842  
Tax effect of the following:
               
Statutory depletion
    (39,383 )     (69,680 )
Section 1033 deferred gain
    (58,090 )     (36,217 )
State income tax
    10,481       49,519  
Other
    335       60  
Income tax on income
  $ 142,437     $ 598,524  
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
   
2015
   
2014
 
Casualty loss
  $ (121,239 )   $ (121,239 )
Deferred gain
    (171,528 )     (103,187 )
    $ (292,767 )   (224,426 )