Revenue Recognition and Related Costs - Schedule of Changes in Allowance for Credit Losses (Detail) |
6 Months Ended |
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Mar. 31, 2025
USD ($)
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| Receivables [Abstract] | |
| Balance, beginning of year | $ 390,000 |
| Provision for credit losses | 0 |
| Provision for estimated returns and allowances | 275,000 |
| Uncollectible accounts written off | (12,000) |
| Returns and allowances issued | (155,000) |
| Balance, end of year | $ 498,000 |
| X | ||||||||||
- Definition Allowance for doubtful accounts receivable returns and allowances issued. No definition available.
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| X | ||||||||||
- Definition Provision for doubtful accounts estimated returns and allowances. No definition available.
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| X | ||||||||||
- Definition Amount of allowance for credit loss on accounts receivable, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of direct write-downs of accounts receivable charged against the allowance. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of expense (reversal of expense) for expected credit loss on accounts receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- References No definition available.
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