Segment Information (Details) $ in Thousands	3 Months Ended
Mar. 31, 2017 USD ($) segment	Apr. 01, 2016 USD ($)	Feb. 29, 2016
Segment Reporting Information [Line Items]
Provision for excess and obsolete inventories	$ 387	$ 418
Revenue, Net	82,943	81,832
Income (loss) from operations	(21,158)	(20,756)
Operating Expenses	(61,566)	(61,410)
Stock-based compensation	(3,251)	(3,094)
Amortization of intangibles	(2,069)	(2,783)
Nonoperating Income (Expense)	(3,101)	(3,906)
Loss before income taxes	$ (24,259)	(24,662)
Number of Reportable Segments \| segment	2
Business Acquisition, Percentage of Voting Interests Acquired			100.00%
Video [Member]
Segment Reporting Information [Line Items]
Revenue, Net	$ 74,342	65,008
Cable Edge [Member]
Segment Reporting Information [Line Items]
Revenue, Net	8,601	16,824
Operating Segments [Member]
Segment Reporting Information [Line Items]
Income (loss) from operations	(11,916)	(9,200)
Operating Segments [Member] \| Video [Member]
Segment Reporting Information [Line Items]
Income (loss) from operations	(5,836)	(7,347)
Operating Segments [Member] \| Cable Edge [Member]
Segment Reporting Information [Line Items]
Income (loss) from operations	(6,080)	(1,853)
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Operating Expenses	$ (3,922)	$ (5,679)

The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives.

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Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments.

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Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels.

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Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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