Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Total net sales	$ 626,969	$ 536,377
Total cost of sales	509,810	431,116
Gross profit	117,159	105,261
Selling and administrative expenses	87,679	80,521
Amortization expense	7,098	6,992
Interest expense - net	6,154	8,070
Concrete Tie Settlement expense (Note 19)	43,400	0
Other income	(461)	(373)
Total expenses	143,870	95,210
(Loss) income before income taxes	(26,711)	10,051
Income tax expense	4,457	4,690
Net (loss) income	$ (31,168)	$ 5,361	[1]
Basic (loss) earnings per common share (usd per share)	$ (3.01)	$ 0.52
Diluted (loss) earnings per common share (usd per share)	$ (3.01)	$ 0.51
Sales of goods
Total net sales	$ 463,165	$ 431,818
Total cost of sales	380,395	344,976
Sales of services
Total net sales	163,804	104,559
Total cost of sales	$ 129,415	$ 86,140

[1] The balances as of January 1, 2017 and the year ended December 31, 2017 amounts have been adjusted to reflect the change in inventory accounting method, as described in Notes 1 and 6 to the Consolidated Financial Statements.