Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Total net sales	$ 131,515	$ 154,522	$ 230,309	$ 270,602
Total cost of sales	108,222	128,361	190,569	225,611
Gross profit	23,293	26,161	39,740	44,991
Selling and administrative expenses	19,394	19,767	36,692	37,793
Amortization expense	1,419	1,470	2,855	2,935
Operating profit	2,480	4,924	193	4,263
Interest expense - net	384	861	754	1,732
Other (income) expense - net	(701)	70	(1,264)	129
Income before income taxes	2,797	3,993	703	2,402
Income tax expense	821	1,139	313	818
Net income	1,976	2,854	390	1,584
Net loss attributable to noncontrolling interest	(34)	(22)	(54)	(34)
Net income attributable to L.B. Foster Company	$ 2,010	$ 2,876	$ 444	$ 1,618
Basic loss per common share (usd per share)	$ 0.18	$ 0.27	$ 0.04	$ 0.15
Diluted loss per common share (usd per share)	$ 0.18	$ 0.27	$ 0.04	$ 0.15
Sales of goods
Total net sales	$ 116,584	$ 138,309	$ 201,005	$ 238,855
Total cost of sales	95,331	115,087	165,176	199,212
Sales of services
Total net sales	14,931	16,213	29,304	31,747
Total cost of sales	$ 12,891	$ 13,274	$ 25,393	$ 26,399