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Note D - Concentration of Risk (Details) - Accounts Receivable Concentration Risk by Customer (Accounts Receivable [Member])
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Customer C [Member]
   
Concentration Risk [Line Items]    
Customer 74.00% 78.00%
Customer D [Member]
   
Concentration Risk [Line Items]    
Customer 14.00%