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Note P - Income Taxes (Tables)
12 Months Ended
Dec. 31, 2012
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
   
2012
   
2011
 
             
Current asset:
           
Accrued compensation
  $ 128,000     $ 119,000  
Accounts receivable allowance
    8,000       156,000  
Non-current asset (liability):
               
Stock-based compensation     336,000        
Basis differences in fixed assets
    (10,000 )     (21,000 )
Basis differences in intangible assets
    (77,000 )     31,000  
Net operating loss carryforwards
    16,143,000       15,912,000  
Valuation allowances
    (16,528,000 )     (16,197,000 )
                 
    $     $  
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
   
2012
   
2011
 
             
US Federal statutory income tax rate
    34 %     34 %
Permanent differences
    831       (4 )
Alternative minimum tax
          1  
Effect of net operating loss
    (865 )     (30 )
                 
Effective tax rate
    %     1 %