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Note 6 - Income Taxes (Tables)
12 Months Ended
Dec. 31, 2012
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
   
2012
   
2011
 
   
Current
   
Non-Current
   
Current
   
Non-Current
 
                         
Deferred tax assets
  $ --     $ --     $ 7,906     $ --  
Deferred tax liabilities
    --       (181,818 )     (5,153 )     (181,818 )
    $ --     $ (181,818 )   $ 2,753     $ (181,818 )
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
   
2012
   
2011
 
Income tax on income before extraordinary item:
           
Tax at statutory rates
  $ 900,944     $ 468,082  
Tax effect of the following:
               
Statutory depletion
    (130,489 )     (78,438 )
Dividend exclusion
    --       (3,171 )
State income tax
    71,525       32,844  
Other
    40       (593 )
Income tax on income before extraordinary item
  $ 842,020     $ 418,724  
Income tax on extraordinary item:
               
Tax at statutory rates
  $ 233,762     $ --  
Tax effect of the following:
               
State income tax
    22,085     $ --  
Other
    153     $ --  
Income tax on extraordinary item
  $ 256,000     $ --  
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
   
2012
   
2011
 
   
Current
   
Non-Current
   
Current
   
Non-Current
 
Conversion of investment from tax cash basis to accrual basis for financial reporting
  $ --       --     $ 2,753       --  
Unrealized net loss (gain) on marketable securities
    --       --       --       --  
Casualty loss
    --       (121,239 )     --       (121,239 )
Deferred gain
    --       (60,579 )     --       (60,579 )
    $ --       (181,818 )   $ 2,753       (181,818 )