Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 28, 2020	Dec. 28, 2019	Sep. 28, 2019	Jun. 29, 2019	Mar. 30, 2019	Dec. 29, 2018	Sep. 29, 2018	Jun. 30, 2018	Mar. 28, 2020	Mar. 30, 2019	Mar. 31, 2018
Earnings Per Share
Net income									$ 47,949	$ 39,022	$ 28,879
Weighted average basic shares outstanding	28,786,000	28,665,000	28,502,000	28,380,000	28,327,000	28,320,000	28,119,000	27,604,000	28,583,000	28,092,000	26,744,000
Dilutive effect of options and restricted stock									637,000	721,000	784,000
Weighted average diluted shares outstanding	29,310,000	29,367,000	29,161,000	29,025,000	28,922,000	28,886,000	28,875,000	28,542,000	29,220,000	28,813,000	27,528,000
Basic earnings per share	$ 0.20	$ 0.87	$ 0.27	$ 0.34	$ 0.31	$ 0.67	$ 0.16	$ 0.24	$ 1.68	$ 1.39	$ 1.08
Diluted earnings per share	$ 0.20	$ 0.85	$ 0.26	$ 0.33	$ 0.30	$ 0.66	$ 0.16	$ 0.24	$ 1.64	$ 1.35	$ 1.05
Shares that were not included in the computation of weighted average diluted common shares amounts									360,079	483,050	476,870