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Accounts Receivable (Tables) | 12 Months Ended
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Dec. 31, 2021
Receivables [Abstract] |
Accounts Receivable Detail | Accounts receivable as of December 31, 2021 and 2020 are summarized as follows:
|  | December 31,
|  | 2021 |  | 2020
Accounts receivable |  | $ | 56,458 |  |  | $ | 59,242 |
Allowance for credit losses |  | (547) |  |  | (944) |
Accounts receivable - net |  | $ | 55,911 |  |  | $ | 58,298 |
The Company’s customers are principally in the rail, transportation, heavy civil, agricultural, energy, commercial, and residential infrastructure sectors. As of December 31, 2021 and 2020, trade receivables, net of allowance for credit losses, from customers were as follows:
|  | December 31,
|  | 2021 |  | 2020
Rail, Technologies, and Services |  | $ | 34,827 |  |  | $ | 33,960 |
Precast Concrete Products |  | 10,809 |  |  | 11,119 |
Steel Products and Measurement |  | 10,275 |  |  | 13,133 |
Trade accounts receivable - net |  | $ | 55,911 |  |  | $ | 58,212 |
Accounts Receivable, Allowance for Credit Loss | The following table sets forth the Company’s allowance for credit losses:
|  | Allowance for Credit Losses
December 31, 2020 |  | $ | 944 |
Current period provision |  | (87) |
Write-off against allowance |  | (310) |
December 31, 2021 |  | $ | 547 |

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- Definition Tabular disclosure of allowance for credit loss on accounts receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 + Details
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- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3,4) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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