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Summary of Significant Accounting Policies - EPS (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 12 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Summary of Significant Accounting Policies    
Net income (loss) from continuing operations $ 234 $ (1,446)
Net income from sale of discontinued operations 465  
Net income (loss) 699 (1,446)
Less: net loss attributable to nonvested common stock 33  
Net income (loss) attributable to common shareholders 666 (1,446)
Net income (loss) attributable to common shareholders from continuing operations 223 (1,446)
Net income attributable to common shareholders from discontinued operations 443  
Net income (loss) from continuing operations $ 234 $ (1,446)
Weighted average total shares outstanding - basic 4,356 4,028
Less: weighted average non-vested shares outstanding (205)  
Weighted average number of common shares outstanding - basic 4,151 4,028
Potential common shares from non-vested stock awards and the assumed exercise of stock options 69  
Weighted average common shares outstanding - diluted 4,220 4,028
Net income (loss) from continuing operations per share - basic $ 0.05 $ (0.36)
Net income from discontinued operations per share - basic 0.11  
Net income (loss) per share - basic 0.16 (0.36)
Net income (loss) from continuing operations per share - diluted 0.05 (0.36)
Net income from discontinued operations per share - diluted 0.11  
Net income (loss) per share - diluted $ 0.16 $ (0.36)