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Earnings Per Share (Tables) | 6 Months Ended
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Mar. 31, 2021
Earnings Per Share [Abstract] |
Reconciliation of Basic and Diluted Weighted Average Shares used in Computation of Earnings Per Share | The following table reconciles basic and diluted weighted average shares used in the computation of earnings per share (in thousands, except per share data):
| Three months ended March 31, |  | Six months ended March 31,
| 2021 |  | 2020 |  | 2021 |  | 2020
Numerator: |  |  |  |  |  |  |
Net income (loss) | $ | (225) |  |  | $ | 7,421 |  |  | $ | (589) |  |  | $ | 10,196 |
Denominator: |  |  |  |  |  |  |
Weighted average basic shares | 11,707 |  |  | 11,621 |  |  | 11,690 |  |  | 11,617 |
Dilutive effect of restricted stock units | — |  |  | 60 |  |  | — |  |  | 56 |
Weighted average diluted shares | 11,707 |  |  | 11,681 |  |  | 11,690 |  |  | 11,673 |
Earnings (loss) per share: |  |  |  |  |  |  |
Basic | $ | (0.02) |  |  | $ | 0.64 |  |  | $ | (0.05) |  |  | $ | 0.88 |
Diluted | $ | (0.02) |  |  | $ | 0.64 |  |  | $ | (0.05) |  |  | $ | 0.87 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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