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Note D - Concentration of Risk (Details) - Revenue Concentration Risk by Major Customer (Customer Concentration Risk [Member], Sales Revenue, Net [Member])
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Customer A [Member]
   
Revenue, Major Customer [Line Items]    
Customer 19.00% 31.00%
Customer B [Member]
   
Revenue, Major Customer [Line Items]    
Customer 15.00%