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Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Jun. 30, 2019 | Jun. 30, 2018
Numerator: |  |  |  |  |  |  |  |
Income from continuing operations, net of tax | $ 893 |  |  | $ 4,979 |  |  | $ 2,153 | $ 7,741
Income (loss) from discontinued operations, net of tax | 1,154 |  |  | (8) |  |  | (8,113) | 6,517
Net income (loss) | $ 2,047 | $ (5,635) | $ (2,372) | $ 4,971 | $ 2,835 | $ 6,452 | $ (5,960) | $ 14,258
Denominator: |  |  |  |  |  |  |  |
Weighted-average shares used to compute basic EPS (in shares) | 14,245 |  |  | 14,925 |  |  | 14,231 | 14,867
Common stock equivalents (in shares) | 71 |  |  | 166 |  |  | 36 | 314
Weighted-average shares used to compute diluted EPS (in shares) | 14,316 |  |  | 15,091 |  |  | 14,267 | 15,181
Basic income per share from continuing operations (USD per share) | $ 0.06 |  |  | $ 0.33 |  |  | $ 0.15 | $ 0.52
Basic (loss) income per share from discontinued operations (USD per share) | 0.08 |  |  | 0.00 |  |  | (0.57) | 0.44
Net (loss) income per basic share (USD per share) | 0.14 |  |  | 0.33 |  |  | (0.42) | 0.96
Diluted income per share from continuing operations (USD per share) | 0.06 |  |  | 0.33 |  |  | 0.15 | 0.51
Diluted (loss) income per share from discontinued operations (USD per share) | 0.08 |  |  | 0.00 |  |  | (0.57) | 0.43
Net income (loss) per diluted share (USD per share) | $ 0.14 |  |  | $ 0.33 |  |  | $ (0.42) | $ 0.94
Stock Options |  |  |  |  |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |  |  |  |  |  |
Antidilutive securities excluded from computation of earnings per share (in shares) | 819 |  |  | 679 |  |  | 1,062 | 428

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