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Note P - Income Taxes (Tables)
12 Months Ended
Dec. 31, 2012
Income Tax Disclosure [Abstract]  
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

%