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Stock-Based Compensation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2016	Jul. 03, 2015	Jul. 01, 2016	Jul. 03, 2015
Schedule of Employee Service Share-based Compensation [Line Items]
Share-based Compensation	$ 300	$ 829	$ 7,758	$ 1,823
Employee stock options [Member]
Schedule of Employee Service Share-based Compensation [Line Items]
Share-based Compensation	153	555	5,049	1,193
Restricted stock [Member]
Schedule of Employee Service Share-based Compensation [Line Items]
Share-based Compensation	2	63	227	307
Restricted stock units [Member]
Schedule of Employee Service Share-based Compensation [Line Items]
Share-based Compensation	145	154	2,423	274
Nonemployee stock options [Member]
Schedule of Employee Service Share-based Compensation [Line Items]
Share-based Compensation	$ 0	$ 57	$ 59	$ 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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