Quarterly Financial Information (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Apr. 01, 2017	Dec. 31, 2016	Oct. 01, 2016	Jul. 02, 2016	Apr. 02, 2016	Jan. 02, 2016	Sep. 26, 2015	Jun. 27, 2015	Apr. 01, 2017	Apr. 02, 2016	Mar. 28, 2015
Quarterly Financial Information Disclosure [Abstract]
Sales Revenue, Goods, Net	$ 40,029	$ 25,427	$ 21,442	$ 38,200	$ 44,043	$ 31,282	$ 35,570	$ 32,062	$ 125,098	$ 142,957	$ 111,603
Sales Revenue, Services, Net	9,889	8,352	8,216	9,468	7,443	12,060	10,902	11,029	35,925	41,434	47,515
Net sales	49,918	33,779	29,658	47,668	51,486	43,342	46,472	43,091	161,023	184,391	159,118
Cost of Goods Sold	27,499	17,283	14,146	22,422	25,247	20,292	22,345	21,285	81,350	89,169	78,195
Cost of Services	4,189	5,048	4,532	4,438	5,055	5,329	5,706	6,429	18,207	22,519	26,242
Cost of Goods and Services Sold	31,688	22,331	18,678	26,860	30,302	25,621	28,051	27,714	99,557	111,688	104,437
Gross profit	18,230	11,448	10,980	20,808	21,184	17,721	18,421	15,377	61,466	72,703	54,681
Net income (loss)	$ (17,923)	$ (9,693)	$ (9,675)	$ (118)	$ 1,953	$ (4,586)	$ (3,260)	$ (6,364)	$ (37,409)	$ (12,257)	$ (43,811)
Basic net (loss) income per share	$ (0.54)	$ (0.29)	$ (0.30)	$ 0.00	$ 0.06	$ (0.15)	$ (0.10)	$ (0.20)	$ (1.15)	$ (0.39)	$ (1.43)
Diluted net (loss) income per share	$ (0.54)	$ (0.29)	$ (0.30)	$ 0.00	$ 0.06	$ (0.15)	$ (0.10)	$ (0.20)	(1.15)	(0.39)	(1.43)
Cash dividends paid per common share									$ 0	$ 0	$ 0.24
Other Quarterly Information [Abstract]
Impairment of Intangible Assets, Finite-lived	$ 2,300				$ 400				$ 2,349	$ 0	$ 0
Restructuring Costs	6,600				$ 200	$ 1,900	$ 600
Goodwill, Impairment Loss	7,400								7,445	0	7,889
Business Combination, Integration Related Costs									366	194	776
Other than temporary impairment of cost based investments									0	0	4,263
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property									(1,323)	(862)	6
Inventory Write-down	$ 1,700					$ 1,400			2,440	0	0
Restructuring costs									$ 6,935	$ 2,824	$ 2,069