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Earnings Per Share of Common Stock (Detail) - Basic and diluted earnings per share computations - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 9 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Earnings Per Share [Abstract]        
Net income (loss) $ 249 $ 899 $ (863) $ 1,412
Less: Net income attributable to nonvested common stock (in Dollars) 9 36 0 51
Net income attributable to common stockholders (in Dollars) $ 240 $ 863 $ (863) $ 1,361
Weighted average total shares outstanding – basic 3,674 3,593 3,522 3,572
Less: weighted average non-vested shares outstanding 134 142 0 130
Weighted average number of common shares outstanding – basic 3,540 3,451 3,522 3,442
Potential common shares from non-vested stock awards and the assumed exercise of stock options 93 48 0 46
Weighted average common shares outstanding – diluted 3,633 3,499 3,522 3,488
Net income (loss) per share – basic (in Dollars per share) $ 0.07 $ 0.25 $ (0.25) $ 0.40
Net income (loss) per share – diluted (in Dollars per share) $ 0.07 $ 0.25 $ (0.25) $ 0.39