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Note F - Note Receivable - Related Party (Detail) (USD $)
In Thousands, except Share data, unless otherwise specified
1 Months Ended 3 Months Ended 10 Months Ended 21 Months Ended 27 Months Ended 34 Months Ended 48 Months Ended
Jun. 30, 2011
Jul. 12, 2010
May 31, 2011
Mar. 31, 2009
Jun. 30, 2011
May 02, 2010
Jun. 30, 2011
Dec. 31, 2010
Jun. 30, 2010
Jun. 25, 2007
Notes Receivable, Related Parties, Noncurrent (in Dollars) $ 3,967       $ 3,967   $ 3,967 $ 3,849 $ 3,733 $ 3,000
Related Party Transaction, Rate       8.00% 6.00%          
Interest Income Related Party (in Dollars)             967      
Related Party Shares Pledged As Collateral 315,000 765,000 210,000     510,000        
Shares Released Related Party Transaction   555,000                
Market Value Shares Pledged As Collateral Related Party (in Dollars)     $ 6,798              
Stock SplitB [Member]
                   
Stock Split Conversion Ratio                 3-for-2  
Stock SplitA [Member]
                   
Stock Split Conversion Ratio 3-for-2       3-for-2   3-for-2