Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Jul. 01, 2017	Jul. 02, 2016
Income Statement [Abstract]
Net sales	$ 163,897	$ 154,579
Cost of sales	101,988	97,328
Gross margin	61,909	57,251
Operating expenses:
Selling, general and administrative	27,778	25,796
Other, net	2,331	2,234
Total operating expenses	30,109	28,030
Operating income	31,800	29,221
Interest expense, net	2,029	2,293
Other non-operating expense	372	118
Income before income taxes	29,399	26,810
Provision for income taxes	7,590	8,770
Net income	$ 21,809	$ 18,040
Net income per common share:
Basic (in dollars per share)	$ 0.92	$ 0.77
Diluted (in dollars per share)	$ 0.90	$ 0.76
Weighted average common shares:
Basic (in shares)	23,805,138	23,320,579
Diluted (in shares)	24,189,375	23,626,751