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Schedule ll - Valuation and Qualifying Accounts | 12 Months Ended
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Sep. 30, 2023
Notes to Financial Statements |
SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] | SCHEDULE II – VALUATION AND QUALIFYING ACCOUNTS (in thousands)
|  |  |  | Opening |  |  | Charged to |  |  |  |  |  |  | Closing |
Year |  | Description |  | Balance |  |  | Expense |  |  | Deductions |  |  | Balance |
2023 |  | Allowance for estimated credit losses |  | $ | 2,158 |  |  | $ | 1,428 |  |  | $ | 404 | (1) |  | $ | 3,182 |
2022 |  | Allowance for estimated credit losses |  | $ | 1,405 |  |  | $ | 1,781 |  |  | $ | 1,028 | (1) |  | $ | 2,158 |
2021 |  | Allowance for estimated credit losses |  | $ | 1,388 |  |  | $ | 338 |  |  | $ | 321 | (1) |  | $ | 1,405 |
(1) Write-offs of uncollectible accounts receivable.

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- Definition The entire disclosure for valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 09 -Publisher SEC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480678/235-10-S99-4 + Details
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