Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Net sales	$ 49,019	$ 37,886	$ 91,949	$ 74,939
Cost of sales	36,033	27,945	68,779	55,482
Gross profit	12,986	9,941	23,170	19,457
Selling, general & administrative expenses	7,417	6,061	14,008	12,376
Acquisition-related costs	19		1,089
Restructuring costs		63		63
Material overcharge settlement	(104)	(121)	(104)	(121)
(Gain) Loss on sale of fixed assets	(15)	8	(55)	3
Operating income	5,669	3,930	8,232	7,136
Interest income	(7)	(42)	(32)	(84)
Interest expense	404	13	677	27
Other income	(3)		(53)
Income before income tax expense	5,275	3,959	7,640	7,193
Income tax expense	1,285	1,329	1,873	2,392
Net income	$ 3,990	$ 2,630	$ 5,767	$ 4,801
Net income per share:
Basic (in dollars per share)	$ 0.54	$ 0.36	$ 0.79	$ 0.66
Diluted (in dollars per share)	$ 0.54	$ 0.36	$ 0.78	$ 0.66
Weighted average common shares outstanding:
Basic (in shares)	7,347	7,239	7,336	7,228
Diluted (in shares)	7,413	7,323	7,408	7,312