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Earnings Per Share Data - Basic and Diluted Earnings (loss) Per Share (Detail) (USD $)
 3 Months Ended 9 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Earnings Per Share [Abstract]        
Net Income $ 1,663,000 $ 2,489,000 $ 4,010,000 $ 4,490,000
Common Shares:        
Weighted average common shares outstanding 9,518,000 9,518,000 9,518,000 9,518,000
Effect of dilutive stock options 84,000 0 66,000 0
Diluted shares outstanding 9,602,000 9,518,000 9,584,000 9,518,000
Basic:        
Net earnings per share $ 0.17 $ 0.26 $ 0.42 $ 0.47
Diluted:        
Net earnings per share $ 0.17 $ 0.26 $ 0.42 $ 0.47