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Quarterly Information (Unaudited) (Tables) | 12 Months Ended
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Sep. 30, 2022
Quarterly Financial Information Disclosure [Abstract] |
Schedule of Selected Quarterly Financial Data | A summary of selected quarterly financial information for 2022 and 2021 is as follows (amounts in thousands except per share data):
| 2022
| Q1 |  | Q2 As Restated |  | Q3 As Restated |  | Q4
Revenue | $ | 32,473 |  |  | $ | 33,510 |  |  | $ | 39,195 |  |  | $ | 38,765 |
Cost of revenue | 4,556 |  |  | 4,451 |  |  | 5,784 |  |  | 5,217 |
Operating expenses | 23,089 |  |  | 26,379 |  |  | 32,518 |  |  | 30,610 |
Operating income | 4,828 |  |  | 2,680 |  |  | 893 |  |  | 2,938 |
Interest expense | 2,008 |  |  | 2,040 |  |  | 2,077 |  |  | 2,107 |
Other income (expense), net | 135 |  |  | (225) |  |  | 89 |  |  | (369) |
Income tax benefit (provision) | 168 |  |  | 20 |  |  | 880 |  |  | (773) |
Net income (loss) | 3,123 |  |  | 435 |  |  | (215) |  |  | (311) |
Net income (loss) per share: |  |  |  |  |  |  |
Basic income (loss) per share | 0.07 |  |  | 0.01 |  |  | — |  |  | (0.01) |
Shares used in calculating net income (loss) per share—basic | 44,788 |  |  | 44,775 |  |  | 44,669 |  |  | 44,661 |
Diluted income (loss) per share | 0.07 |  |  | 0.01 |  |  | — |  |  | (0.01) |
Shares used in calculating net income (loss) per share—diluted | 46,155 |  |  | 46,097 |  |  | 45,224 |  |  | 45,311 |
| 2021
| Q1 |  | Q2 |  | Q3 |  | Q4
Revenue | $ | 25,976 |  |  | $ | 28,773 |  |  | $ | 31,778 |  |  | $ | 33,270 |
Cost of revenue | 4,138 |  |  | 3,792 |  |  | 3,410 |  |  | 3,200 |
Operating expenses | 20,301 |  |  | 22,598 |  |  | 22,936 |  |  | 26,145 |
Operating income | 1,537 |  |  | 2,383 |  |  | 5,432 |  |  | 3,925 |
Interest expense | — |  |  | 1,319 |  |  | 2,223 |  |  | 1,587 |
Other income (expense), net | 96 |  |  | 372 |  |  | 80 |  |  | 106 |
Income tax benefit (provision) | 534 |  |  | (417) |  |  | (304) |  |  | (637) |
Net income | 2,167 |  |  | 1,019 |  |  | 2,985 |  |  | 1,807 |
Net income per share: |  |  |  |  |  |  |
Basic income per share | 0.05 |  |  | 0.02 |  |  | 0.07 |  |  | 0.04 |
Shares used in calculating net income per share—basic | 42,476 |  |  | 43,138 |  |  | 43,773 |  |  | 44,616 |
Diluted income (loss) per share | 0.05 |  |  | 0.02 |  |  | 0.07 |  |  | 0.04 |
Shares used in calculating net income per share—diluted | 43,897 |  |  | 44,554 |  |  | 45,194 |  |  | 46,236 |

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- Definition Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=126900988&loc=d3e1280-108306 + Details
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