Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Total net sales	$ 128,775	$ 150,469
Total cost of sales	107,118	121,307
Gross profit	21,657	29,162
Selling and administrative expenses	21,325	21,917
Amortization expense	1,463	1,712
Interest expense - net	817	1,355
Other expense (income) - net	746	(150)
(Loss) income before income taxes	(2,694)	4,328
Income tax (benefit) expense	(828)	638
Net (loss) income	$ (1,866)	$ 3,690
Basic earnings per common share (usd per share)	$ (0.18)	$ 0.36
Diluted earnings per common share (usd per share)	$ (0.18)	$ 0.35
Product
Total net sales	$ 96,885	$ 113,083
Total cost of sales	80,826	92,331
Service
Total net sales	31,890	37,386
Total cost of sales	$ 26,292	$ 28,976