Accounts Receivable (Tables)

12 Months Ended

Dec. 31, 2019

Receivables [Abstract]

Accounts Receivable Detail

Accounts receivable as of December 31, 2019 and 2018 are summarized as follows:

	December 31,
	2019		2018
Accounts receivable	$	79,675	$	87,055
Allowance for doubtful accounts	(1,100)		(932)
Accounts receivable - net	$	78,575	$	86,123

The Company’s customers are principally in the transportation and energy infrastructure sectors. As of December 31, 2019 and 2018, trade receivables, net of allowance for doubtful accounts, from customers were as follows:

	December 31,
	2019		2018
Rail Products and Services	$	44,941	$	43,180
Construction Products	19,301		19,998
Tubular and Energy Services	14,205		19,121
Trade accounts receivable - net	$	78,447	$	82,299