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Note G - Note Receivable - Related Party (Detail) (USD $)
In Thousands, except Share data, unless otherwise specified
2 Months Ended4 Months Ended10 Months Ended21 Months Ended30 Months Ended34 Months Ended51 Months Ended
Jul. 12, 2010
Sep. 30, 2011
May 31, 2011
Mar. 31, 2009
Sep. 30, 2011
May 03, 2010
Sep. 30, 2011
Dec. 31, 2010
Sep. 30, 2010
Jun. 25, 2007
May 03, 2010
Stock Split A (Member)
May 31, 2011
Stock Split B (Member)
May 05, 2011
Stock Split B (Member)
Notes Receivable, Related Parties, Noncurrent (in Dollars) $ 4,028  $ 4,028 $ 4,028$ 3,849$ 3,791$ 3,000   
Related Party Transaction, Rate   8.00%6.00%        
Interest Income Related Party (in Dollars)      1,028      
Stock Split Conversion Ratio          3-for-23-for-2three-for-two
Related Party Shares Pledged As Collateral765,000315,000210,000  510,000       
Shares Released Related Party Transaction555,000            
Market Value Shares Pledged As Collateral Related Party (in Dollars)$ 6,798$ 9,482  $ 9,482 $ 9,482