Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Total net sales	$ 145,766	$ 200,933	$ 274,541	$ 351,402
Total cost of sales	118,713	163,805	225,831	285,112
Gross profit	27,053	37,128	48,710	66,290
Selling and administrative expenses	19,562	22,855	40,887	44,772
Amortization expense	1,446	1,679	2,909	3,391
Interest expense - net	1,090	1,597	1,907	2,952
Other expense (income) - net	3,339	(252)	4,085	(402)
Income (loss) before income taxes	1,616	11,249	(1,078)	15,577
Income tax expense	1,093	1,685	265	2,323
Net income (loss)	$ 523	$ 9,564	$ (1,343)	$ 13,254
Basic earnings per common share (usd per share)	$ 0.05	$ 0.92	$ (0.13)	$ 1.27
Diluted earnings per common share (usd per share)	$ 0.05	$ 0.90	$ (0.13)	$ 1.25
Product
Total net sales	$ 123,300	$ 160,227	$ 220,185	$ 273,310
Total cost of sales	100,488	132,438	181,314	224,769
Service
Total net sales	22,466	40,706	54,356	78,092
Total cost of sales	$ 18,225	$ 31,367	$ 44,517	$ 60,343