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Schedule II Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2022
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, 2022 AND 2021
|  | Balance at Beginning of Year |  | Additions Charged to Costs and Expenses |  | Other adjustments (1) |  |  |  | Balance at End of Year
Allowance for credit losses |  |  |  |  |  |  |  |  |  |
For the year ended December 31, |  |  |  |  |  |  |  |  |  |
2022 |  | $ | 547 |  |  | $ | 382 |  |  | $ | 116 |  |  |  |  | $ | 813 |
2021 |  | $ | 944 |  |  | $ | (87) |  |  | $ | 310 |  |  |  |  | $ | 547 |
1.Notes and accounts receivable written off as uncollectible or allowance reversed.
|  | Balance at Beginning of Year |  | Additions Charged to Costs and Expenses |  | Other adjustments (1) |  |  |  | Balance at End of Year
Valuation allowance for deferred tax assets |  |  |  |  |  |  |  |  |  |
For the year ended December 31, |  |  |  |  |  |  |  |  |  |
2022 |  | $ | 3,290 |  |  | $ | 37,895 |  |  | $ | 584 |  |  |  |  | $ | 40,601 |
2021 |  | $ | 1,483 |  |  | $ | 1,807 |  |  | $ | — |  |  |  |  | $ | 3,290 |
1.Consists primarily of adjustments related to unrealized income on interest rate swap contracts.

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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 https://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 + Details
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