Accounts Receivable (Tables)

12 Months Ended

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