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Segment Information (Details) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
Segment Information (Details) $ in Thousands	Jul. 03, 2015 USD ($)	Jun. 27, 2014 USD ($)	Jul. 03, 2015 USD ($)	Jun. 27, 2014 USD ($)	Dec. 31, 2014 segment	Dec. 31, 2013 segment
Segment Reporting Information [Line Items]
Revenue, Net	$ 103,103	$ 109,589	$ 207,119	$ 217,621
Number of Reportable Segments \| segment					2	1
Income (loss) from operations	(343)	(8,649)	(330)	(15,871)
Operating Expenses	(54,728)	(58,466)	(109,743)	(118,000)
Stock-based compensation	(3,884)	(4,561)	(8,018)	(8,368)
Amortization of Intangible Assets	(1,532)	(6,200)	(3,439)	(12,866)
Nonoperating Income (Expense)	76	(60)	(2,880)	29
Loss before income taxes	(267)	(8,709)	(3,210)	(15,842)
Video [Member]
Segment Reporting Information [Line Items]
Revenue, Net	78,207	77,311	147,489	158,463
Cable Edge [Member]
Segment Reporting Information [Line Items]
Revenue, Net	24,896	32,278	59,630	59,158
Operating Segments [Member]
Segment Reporting Information [Line Items]
Income (loss) from operations	5,258	2,396	11,356	5,875
Operating Segments [Member] \| Video [Member]
Segment Reporting Information [Line Items]
Income (loss) from operations	4,901	382	4,811	2,817
Operating Segments [Member] \| Cable Edge [Member]
Segment Reporting Information [Line Items]
Income (loss) from operations	357	2,014	6,545	3,058
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Operating Expenses	$ (185)	$ (284)	$ (229)	$ (512)