Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Total net sales	$ 116,080	$ 121,907
Total cost of sales	97,250	98,785
Gross profit	18,830	23,122
Selling and administrative expenses	18,026	20,337
Amortization expense	1,465	1,430
Interest expense - net	871	812
Other expense - net	59	606
Loss from continuing operations before income taxes	(1,591)	(63)
Income tax benefit from continuing operations	(321)	(58)
Loss from continuing operations	(1,270)	(5)
Net loss attributable to noncontrolling interest	(12)	0
Loss from continuing operations attributable to L.B. Foster Company	(1,258)	(5)
Discontinued operations:
Loss from discontinued operations before income taxes	0	(2,631)
Income tax benefit from discontinued operations	0	(770)
Loss from discontinued operations	0	(1,861)
Net loss attributable to L.B. Foster Company	$ (1,258)	$ (1,866)
Basic loss per common share:
From continuing operations (usd per share)	$ (0.12)	$ (0.00)
From discontinued operations (usd per share)	0	(0.18)
Basic earnings per common share (usd per share)	(0.12)	(0.18)
Diluted loss per common share:
From continuing operations (usd per share)	(0.12)	(0.00)
From discontinued operations (usd per share)	0	(0.18)
Diluted earnings per common share (usd per share)	$ (0.12)	$ (0.18)
Sales of goods
Total net sales	$ 100,546	$ 96,388
Total cost of sales	84,125	80,479
Sales of services
Total net sales	15,534	25,519
Total cost of sales	$ 13,125	$ 18,306