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Note 3 - Earnings Per Share of Common Stock (Detail) - Basic and diluted earnings per share computations (USD $)
In Thousands, except Per Share data, unless otherwise specified
 3 Months Ended 6 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Mar. 31, 2013
Mar. 31, 2012
Net income (in Dollars) $ 740 $ 442 $ 855 $ 903
Less: Net income attributable to nonvested common stock (in Dollars) 16 8 17 15
Net income attributable to common stockholders (in Dollars) $ 724 $ 434 $ 838 $ 888
Weighted average total shares outstanding – basic 3,448 3,425 3,437 3,417
Less: weighted average non-vested shares outstanding 73 62 68 57
Weighted average number of common shares outstanding – basic 3,375 3,363 3,369 3,360
Potential common shares from non-vested stock awards and the assumed exercise of stock options 49 38 47 38
Weighted average common shares outstanding – diluted 3,424 3,401 3,416 3,398
Net income per share – basic (in Dollars per share) $ 0.21 $ 0.13 $ 0.25 $ 0.26
Net income per share – diluted (in Dollars per share) $ 0.21 $ 0.13 $ 0.25 $ 0.26