Selected Quarterly Financial Data (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended												12 Months Ended
	Mar. 29, 2020	Dec. 29, 2019	Sep. 29, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 30, 2018	Sep. 30, 2018	Jul. 01, 2018	Apr. 01, 2018	Dec. 31, 2017	Oct. 01, 2017	Jul. 02, 2017	Mar. 29, 2020	Mar. 31, 2019	Apr. 01, 2018
Quarterly Financial Information Disclosure [Abstract]
Sales	$ 132,413	$ 120,406	$ 140,043	$ 147,336	$ 133,051	$ 128,151	$ 145,324	$ 149,800	$ 126,990	$ 118,053	$ 125,395	$ 133,731	$ 540,198	$ 556,326	$ 504,169
Gross profit	22,648	21,478	27,994	28,797	20,674	21,033	25,772	28,457	17,806	18,840	24,115	25,999	100,917	95,936	86,760
Selling, general, and administrative expenses	14,891	14,702	14,817	14,836	14,886	14,312	14,941	14,979	14,670	14,139	14,828	15,766	59,246	59,118	59,403
Goodwill Impairment									39,116	0	0	0	0	0	39,116
Operating income	7,757	6,776	13,177	13,961	5,788	6,721	10,831	13,478	(35,980)	4,701	9,287	10,233	41,671	36,818	(11,759)
Net (loss) income	$ 4,763	$ 4,547	$ 9,250	$ 9,807	$ 3,771	$ 4,130	$ 7,409	$ 9,123	$ (37,361)	$ 17,143	$ 5,210	$ 5,831	$ 28,367	$ 24,433	$ (9,177)
Basic earnings (loss) per share	$ 0.45	$ 0.43	$ 0.87	$ 0.92	$ 0.35	$ 0.39	$ 0.69	$ 0.86	$ (3.51)	$ 1.62	$ 0.49	$ 0.55	$ 2.68	$ 2.29	$ (0.87)
Diluted earnings (loss) per share	$ 0.45	$ 0.43	$ 0.87	$ 0.92	$ 0.35	$ 0.39	$ 0.69	$ 0.85	$ (3.50)	$ 1.61	$ 0.49	$ 0.55	$ 2.66	$ 2.28	$ (0.86)