Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Total net sales	$ 130,015	$ 130,053	$ 360,324	$ 400,655
Total cost of sales	106,918	107,777	297,487	333,388
Gross profit	23,097	22,276	62,837	67,267
Selling and administrative expenses	22,618	20,056	59,310	57,849
Amortization expense	1,599	1,462	4,454	4,397
Operating (loss) profit	(1,120)	758	(927)	5,021
Interest expense - net	993	722	1,747	2,454
Other expense (income) - net	168	(2,880)	(1,096)	(2,751)
(Loss) income from continuing operations before income taxes	(2,281)	2,916	(1,578)	5,318
Income tax (benefit) expense from continuing operations	(176)	676	137	1,494
Net (loss) income from continuing operations	(2,105)	2,240	(1,715)	3,824
Net loss attributable to noncontrolling interest	(28)	(30)	(82)	(64)
Net (loss) income from continuing operations	(2,077)	2,270	(1,633)	3,888
Income from discontinued operations before income taxes	0	72	0	72
Income tax benefit from discontinued operations	0	0	0	0
Income from discontinued operations	0	72	0	72
Net (loss) income attributable to L.B. Foster Company	$ (2,077)	$ 2,342	$ (1,633)	$ 3,960
From continuing operations (usd per share)	$ (0.20)	$ 0.21	$ (0.16)	$ 0.36
From discontinued operations (usd per share)	0	0.01	0	0.01
Basic loss per common share (usd per share)	(0.20)	0.22	(0.16)	0.37
From continuing operations (usd per share)	(0.20)	0.21	(0.16)	0.36
From discontinued operations (usd per share)	0	0.01	0	0.01
Diluted loss per common share (usd per share)	$ (0.20)	$ 0.22	$ (0.16)	$ 0.37
Sales of goods
Total net sales	$ 117,302	$ 112,813	$ 318,307	$ 351,668
Total cost of sales	93,737	93,521	258,913	292,733
Sales of services
Total net sales	12,713	17,240	42,017	48,987
Total cost of sales	$ 13,181	$ 14,256	$ 38,574	$ 40,655