Quarterly Financial Information (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Apr. 02, 2016	Jan. 02, 2016	Sep. 26, 2015	Jun. 27, 2015	Mar. 28, 2015	Dec. 27, 2014	Sep. 27, 2014	Jun. 28, 2014	Apr. 02, 2016	Mar. 28, 2015	Mar. 29, 2014
Quarterly Financial Information Disclosure [Abstract]
Sales Revenue, Goods, Net	$ 44,043	$ 31,282	$ 35,570	$ 32,062	$ 26,156	$ 31,750	$ 30,273	$ 23,424	$ 142,957	$ 111,603	$ 142,054
Sales Revenue, Services, Net	7,443	12,060	10,902	11,029	11,415	11,911	12,583	11,606	41,434	47,515	39,113
Net sales	51,486	43,342	46,472	43,091	37,571	43,661	42,856	35,030	184,391	159,118	181,167
Cost of Goods Sold	25,247	20,292	22,345	21,285	18,488	22,031	20,742	16,934	89,169	78,195	100,870
Cost of Services	5,055	5,329	5,706	6,429	6,168	6,917	7,349	5,808	22,519	26,242	20,426
Cost of Goods and Services Sold	30,302	25,621	28,051	27,714	24,656	28,948	28,091	22,742	111,688	104,437	121,296
Gross profit	21,184	17,721	18,421	15,377	12,915	14,713	14,765	12,288	72,703	54,681	59,871
Net income (loss)	$ 1,953	$ (4,586)	$ (3,260)	$ (6,364)	$ (22,941)	$ (6,376)	$ (6,243)	$ (8,251)	$ (12,257)	$ (43,811)	$ (38,334)
Basic net (loss) income per share	$ 0.06	$ (0.15)	$ (0.10)	$ (0.20)	$ (0.75)	$ (0.21)	$ (0.20)	$ (0.27)	$ (0.39)	$ (1.43)	$ (1.28)
Diluted net (loss) income per share	0.06	(0.15)	(0.10)	(0.20)	(0.75)	(0.21)	(0.20)	(0.27)	(0.39)	(1.43)	(1.28)
Dividends declared per outstanding common share	0	0	0	0	0	0.08	0.08	0.08
Cash dividends paid per common share	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0.08	$ 0.08	$ 0.08	$ 0	$ 0.24	$ 0.32
Other Quarterly Information [Abstract]
Impairment of Intangible Assets	$ 400
Restructuring Costs	$ (200)	$ (1,900)	$ (600)		$ (1,000)
Goodwill, Impairment Loss					7,900				$ 0	$ 7,889	$ 0
Business Combination, Integration Related Costs			$ 100	$ 200	500	$ 300			194	776	0
Other than temporary impairment of cost based investments					4,300				0	4,263	9,703
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property					600				(862)	6	1,138
Inventory Adjustments		$ 1,400							1,400	1,000
Restructuring costs					$ 2,000				2,824	2,069	1,070
Loss on disposal of assets									$ 0	$ 0	$ 1,301