Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Total net sales	$ 118,365	$ 144,848	$ 381,835	$ 475,097
Total cost of sales	96,304	116,897	308,514	382,357
Gross profit	22,061	27,951	73,321	92,740
Selling and administrative expenses	17,066	21,035	56,273	62,871
Amortization expense	1,428	1,622	4,271	4,947
Interest expense - net	940	1,078	2,841	4,030
Other income - net	(209)	(374)	(1,909)	(764)
Income from continuing operations before income taxes	2,836	4,590	11,845	21,656
Income tax (benefit) expense	(13,742)	836	(11,698)	3,883
Income from continuing operations	16,578	3,754	23,543	17,773
Loss from discontinued operations before income taxes	(13,478)	(1,475)	(23,565)	(2,964)
Income tax benefit	3,730	785	5,509	1,509
Loss from discontinued operations	(9,748)	(690)	(18,056)	(1,455)
Net income	$ 6,830	$ 3,064	$ 5,487	$ 16,318
Basic earnings (loss) per common share:
From continuing operations (usd per share)	$ 1.57	$ 0.36	$ 2.24	$ 1.71
From discontinued operations (usd per share)	(0.92)	(0.07)	(1.72)	(0.14)
Basic earnings per common share (usd per share)	0.65	0.29	0.52	1.57
Diluted earnings (loss) per common share:
From continuing operations (usd per share)	1.56	0.35	2.21	1.67
From discontinued operations (usd per share)	(0.92)	(0.06)	(1.69)	(0.14)
Diluted earnings per common share (usd per share)	$ 0.64	$ 0.29	$ 0.52	$ 1.53
Product
Total net sales	$ 101,945	$ 118,578	$ 321,212	$ 389,862
Total cost of sales	82,881	97,232	263,537	320,591
Service
Total net sales	16,420	26,270	60,623	85,235
Total cost of sales	$ 13,423	$ 19,665	$ 44,977	$ 61,766