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Note J - Preferred Stock (Detail) (USD $)
 12 Months Ended
Dec. 31, 2011
Preferred Stock [Member]
  
Preferred Stock, Shares Authorized (in Shares) 5,000,000
Preferred Class B [Member]
  
Preferred Stock, Shares Authorized (in Shares) 60,000
Preferred Stock, Dividend Payment Rate, Variable 1,000
Preferred Stock, Voting Rights 1,000
Preferred Stock, Liquidation Preference Per Share (in Dollars per share) $ 1,000