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Earnings Per Share - Reconciliation of Denominators of Basic and Diluted EPS Calculations (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 3 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Numerator: |  |
Net income (loss) from continuing operations | $ 719 | $ (1,267)
Loss from discontinued operations, net of tax |  | (665)
Net income (loss) | $ 719 | $ (1,932)
Denominator: |  |
Weighted-average shares used to compute basic EPS | 14,072 | 14,290
Common stock equivalents | 45 |
Weighted-average shares used to compute diluted EPS | 14,117 | 14,290
Basic income (loss) per share from continuing operations | $ 0.05 | $ (0.09)
Basic loss per share from discontinued operations |  | (0.05)
Net income (loss) per basic share | 0.05 | (0.14)
Diluted income (loss) per share from continuing operations | 0.05 | (0.09)
Diluted loss per share from discontinued operations |  | (0.05)
Net income (loss) per diluted share | $ 0.05 | $ (0.14)

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