CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Total net sales	$ 121,144	$ 97,792
Total cost of sales	95,448	77,641
Gross profit	25,696	20,151
Selling and administrative expenses	23,033	20,952
Amortization expense	618	1,122
Operating income (loss)	2,045	(1,923)
Interest expense - net	851	1,143
Other income - net	(217)	(318)
Income (loss) before income taxes	1,411	(2,748)
Income tax benefit	(81)	(631)
Net income (loss)	1,492	(2,117)
Net loss attributable to noncontrolling interest	(8)	(7)
Net income (loss) attributable to L.B. Foster Company	$ 1,500	$ (2,110)
Per share data attributable to L.B. Foster shareholders:
Basic earnings (loss) per common share (in USD per share)	$ 0.15	$ (0.20)
Diluted earnings (loss) per common share (in USD per share)	$ 0.14	$ (0.20)
Basic weighted average shares outstanding (in shares)	10,197	10,540
Diluted weighted average shares outstanding (in shares)	10,584	10,540
Sales of goods
Total net sales	$ 105,188	$ 86,548
Total cost of sales	80,933	66,938
Sales of services
Total net sales	15,956	11,244
Total cost of sales	$ 14,515	$ 10,703