Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Total net sales	$ 148,034	$ 131,515	$ 263,522	$ 230,309
Total cost of sales	115,782	108,222	207,979	190,569
Gross profit	32,252	23,293	55,543	39,740
Selling and administrative expenses	24,528	19,394	45,951	36,692
Amortization expense	1,375	1,419	2,740	2,855
Operating profit	6,349	2,480	6,852	193
Interest expense - net	1,574	384	2,962	754
Other expense (income) - net	719	(701)	2,546	(1,264)
Income before income taxes	4,056	2,797	1,344	703
Income tax expense	563	821	22	313
Net income	3,493	1,976	1,322	390
Net loss attributable to noncontrolling interest	(38)	(34)	(57)	(54)
Net income attributable to L.B. Foster Company	$ 3,531	$ 2,010	$ 1,379	$ 444
Basic earnings per common share (usd per share)	$ 0.32	$ 0.18	$ 0.12	$ 0.04
Diluted earnings per common share (usd per share)	$ 0.32	$ 0.18	$ 0.12	$ 0.04
Sales of goods
Total net sales	$ 132,167	$ 116,584	$ 230,705	$ 201,005
Total cost of sales	101,069	95,331	179,134	165,176
Sales of services
Total net sales	15,867	14,931	32,817	29,304
Total cost of sales	$ 14,713	$ 12,891	$ 28,845	$ 25,393