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Summary of Significant Accounting Policies (Detail) - Basic and diluted earnings per share computations for the Companys reported net income attributable to common stockholders - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 12 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Accounting Policies [Abstract]    
Gain from sale of discontinued operations $ 16,838 $ 0
Income (loss) from discontinued operations (410) 263
Net income from discontinued operations 16,428 263
Net income 14,440 2,506
Less: Net income attributable to nonvested common stock (in Dollars) 598 108
Net income attributable to common stockholders $ 13,842 $ 2,398
Weighted average total shares outstanding - basic 3,987 3,890
Less: weighted average non-vested shares outstanding 165 167
Weighted average number of common shares outstanding - basic 3,822 3,723
Potential common shares from non-vested stock awards and the assumed exercise of stock options 79 94
Weighted average common shares outstanding - diluted 3,901 3,817
Net income (loss) per share from continuing operations - basic (in dollars per share) $ (0.52) $ 0.57
Total income per share of discontinued operations - basic (in dollars per share) 4.30 0.07
Net income per share - basic (in Dollars per share) 3.62 0.64
Net income (loss) per hsare from continuing operations - diluted (in dollars per share) (0.52) 0.56
Total income per share of discontinuted operations - diluted (in dollars per share) 4.21 0.07
Net income per share - diluted (in Dollars per share) $ 3.55 $ 0.63