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Valuation and Qualifying Accounts | 12 Months Ended
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Sep. 30, 2021
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] |
Valuation and Qualifying Accounts | Schedule II SIFCO Industries, Inc. and Subsidiaries Valuation and Qualifying Accounts Years Ended September 30, 2021 and 2020 (Amounts in thousands)
| Balance at Beginning of Period |  | Additions (Reductions) Charged to Expense |  | Additions (Reductions) Charged to Other Accounts |  | Deductions |  |  | Balance at End of Period
Year Ended September 30, 2021 |  |  |  |  |  |  |  |  |  |
Deducted from asset accounts |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts | $ | 249 |  |  | $ | (91) |  |  | $ | — |  |  | $ | 9 |  | (a) |  | $ | 167 |
Inventory obsolescence reserve | 3,676 |  |  | (50) |  |  | (180) |  |  | (2) |  | (b) |  | 3,444 |
Inventory LIFO reserve | 8,286 |  |  | 924 |  |  |  |  |  |  |  | 9,210 |
Deferred tax valuation allowance | 5,329 |  |  | 345 |  |  | (1,033) |  |  | — |  |  | 4,641 |
Accrual for estimated liability |  |  |  |  |  |  |  |  |  |
Workers’ compensation reserve | 546 |  |  | 1,241 |  |  | (53) |  |  | (846) |  | (c) |  | 888 |
Year Ended September 30, 2020 |  |  |  |  |  |  |  |  |  |
Deducted from asset accounts |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts | 592 |  |  | (80) |  |  | — |  |  | (263) |  | (a) |  | 249 |
Inventory obsolescence reserve¹ | 3,335 |  |  | 518 |  |  | (151) |  |  | (26) |  | (b) |  | 3,676 |
Inventory LIFO reserve¹ | 8,296 |  |  | (10) |  |  | — |  |  | — |  |  |  | 8,286 |
Deferred tax valuation allowance | 7,557 |  |  | (2,362) |  |  | 134 |  |  | — |  |  |  | 5,329 |
Accrual for estimated liability |  |  |  |  |  |  |  |  |  |
Workers’ compensation reserve | 181 |  |  | 703 |  |  | — |  |  | (338) |  | (c) |  | 546 |
¹ Due to the adoption of Topic 606, there was impact to the opening balance for these accounts. (a) Accounts determined to be uncollectible, net of recoveries (b) Inventory sold or otherwise disposed (c) Payment of workers’ compensation claims

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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 -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 + Details
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