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Stock-based Compensation Plans (Tables) | 6 Months Ended
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Mar. 31, 2022
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] |
Stock-based Compensation Expenses | Stock-based compensation expense was reported as follows in the condensed consolidated statements of operations:
|  | Three Months Ended |  |  | Six Months Ended |
|  | March 31, |  |  | March 31, |
(In thousands) |  | 2022 |  |  | 2021 |  |  | 2022 |  |  | 2021 |
Product costs |  | $ | 78 |  |  | $ | 32 |  |  | $ | 108 |  |  | $ | 69 |
Research and development |  |  | 296 |  |  |  | 305 |  |  |  | 731 |  |  |  | 589 |
Selling, general and administrative |  |  | 1,345 |  |  |  | 1,092 |  |  |  | 2,560 |  |  |  | 2,204 |
Total |  | $ | 1,719 |  |  | $ | 1,429 |  |  | $ | 3,399 |  |  | $ | 2,862 |
Summary of Stock Option Grant Activity | Stock option grant activity was as follows:
|  | Six Months Ended March 31, |
|  | 2022 |  |  | 2021 |
Stock option grant activity: |  |  |  |  |  |  |  |
Stock options granted |  |  | 283,000 |  |  |  | 234,000 |
Weighted average grant date fair value |  | $ | 16.36 |  |  | $ | 13.86 |
Weighted average exercise price |  | $ | 43.72 |  |  | $ | 38.65 |

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- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=122041274&loc=d3e301413-122809 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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