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Stock-Based Compensation (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Oct. 02, 2015	Sep. 30, 2016	Oct. 02, 2015
Schedule of Employee Service Share-based Compensation [Line Items]
Share-based Compensation	$ 386	$ 923	$ 8,143	$ 2,747
Employee stock options [Member]
Schedule of Employee Service Share-based Compensation [Line Items]
Share-based Compensation	208	625	5,257	1,818
Restricted stock [Member]
Schedule of Employee Service Share-based Compensation [Line Items]
Share-based Compensation	32	88	259	396
Restricted stock units [Member]
Schedule of Employee Service Share-based Compensation [Line Items]
Share-based Compensation	146	210	2,569	484
Nonemployee stock options [Member]
Schedule of Employee Service Share-based Compensation [Line Items]
Share-based Compensation	$ 0	$ 0	$ 58	$ 49

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- Definition

Line items represent the schedule of employee service share-based compensation.

+ References

No definition available.

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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

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