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Note 8 - Stock Options and Awards (Detail) - Summary data of stock option award activity (USD $)
In Thousands, except Share data, unless otherwise specified
12 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2009
Outstanding, number of shares 245,425   274,775
Outstanding, weighted average exercise price (in Dollars per share) $ 7.13   $ 6.95
Outstanding, weighted average remaining contractual term 2 years 65 days    
Exercisable at September 30, 2012 239,174    
Exercisable at September 30, 2012 (in Dollars per share) $ 7.23    
Exercisable at September 30, 2012 2 years 7 days    
Exercisable at September 30, 2012 (in Dollars) $ 86    
Vested and expected to vest at September 30, 2012 246,425    
Vested and expected to vest at September 30, 2012 (in Dollars per share) $ 7.11    
Vested and expected to vest at September 30, 2012 2 years 65 days    
Vested and expected to vest at September 30, 2012 (in Dollars) 94    
Granted, number of shares 1,750 1,750  
Granted, weighted average exercise price (in Dollars per share) $ 3.43 $ 3.85  
Expired, number of shares (750) (31,100)  
Expired, weighted average exercise price (in Dollars per share) $ 4.79 $ 5.05  
Outstanding, number of shares 246,425 245,425 274,775
Outstanding, weighted average exercise price (in Dollars per share) $ 7.11 $ 7.13 $ 6.95
Outstanding, weighted average remaining contractual term 2 years 65 days    
Outstanding, aggregate intrinsic value (in Dollars) $ 94