Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Total net sales (Note 4)	$ 497,497	$ 513,620
Total cost of sales	407,886	427,318
Gross profit	89,611	86,302
Selling and administrative expenses	82,657	75,995
Amortization expense (Note 5)	6,144	5,836
Goodwill and long-lived assets impairment charges (Note 5)	8,016	0
Operating (loss) income	(7,206)	4,471
Interest expense - net	3,340	2,956
Other income - net (Note 19)	(1,550)	(3,075)
(Loss) income from continuing operations before income taxes	(8,996)	4,590
Income tax expense (Note 14)	36,681	1,119
Net (loss) income	(45,677)	3,471
Net loss attributable to noncontrolling interest	(113)	(83)
Net (loss) income attributable to L.B. Foster Company	(45,564)	3,554
Income from discontinued operations before income taxes	0	72
Income tax expense (Note 14)	0	0
Income from discontinued operations	0	72
Net (loss) income attributable to L.B. Foster Company	$ (45,564)	$ 3,626
Basic (loss) earnings per common share:
From continuing operations (usd per share)	$ (4.25)	$ 0.33
From discontinued operations (usd per share)	0	0.01
Basic (loss) earnings per common share (usd per share)	(4.25)	0.34
Diluted (loss) earnings per common share:
From continuing operations (usd per share)	(4.25)	0.33
From discontinued operations (usd per share)	0	0.01
Diluted (loss) earnings per common share (usd per share)	$ (4.25)	$ 0.34
Sales of goods
Total net sales (Note 4)	$ 436,821	$ 450,241
Total cost of sales	355,106	374,366
Sales of services
Total net sales (Note 4)	60,676	63,379
Total cost of sales	$ 52,780	$ 52,952