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Schedule II Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2021
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] |
Schedule II Valuation and Qualifying Accounts | L.B. FOSTER COMPANY AND SUBSIDIARIES SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS FOR THE YEARS ENDED DECEMBER 31, 2021 AND 2020
|  | Balance at Beginning of Year |  | Additions Charged to Costs and Expenses |  | Deductions (1) |  |  |  | Balance at End of Year
2021 |  |  |  |  |  |  |  |  |  |
Deducted from assets to which they apply: |  |  |  |  |  |  |  |  |  |
Allowance for credit losses |  | $ | 944 |  |  | $ | (87) |  |  | $ | 310 |  |  |  |  | $ | 547 |
Valuation allowance for deferred tax assets |  | $ | 1,483 |  |  | $ | 1,807 |  |  | $ | — |  |  |  |  | $ | 3,290 |
2020 |  |  |  |  |  |  |  |  |  |
Deducted from assets to which they apply: |  |  |  |  |  |  |  |  |  |
Allowance for credit losses |  | $ | 1,073 |  |  | $ | 286 |  |  | $ | 415 |  |  |  |  | $ | 944 |
Valuation allowance for deferred tax assets |  | $ | 752 |  |  | $ | 731 |  |  | $ | — |  |  |  |  | $ | 1,483 |
1.Notes and accounts receivable written off as uncollectible or allowance reversed.

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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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- References No definition available. + Details
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