Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
Jan. 03, 2017	Dec. 30, 2014	Dec. 29, 2015
Operating Loss Carryforwards [Line Items]
Valuation allowance	$ (27,353)		$ 0
Tax benefits on options		$ 253
Increase in equity if realized	8,500
Federal [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 60,000		$ 34,000

Operating Loss Carryforwards, Increase in Equity if Realized

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- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319

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- Definition

The tax effects of employee stock option transactions that are recognized differently for financial reporting and tax purposes, occurring during the period and charged or credited directly to shareholders' equity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 740
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6419406&loc=d3e23586-113945

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 740
-Section 45
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6419406&loc=d3e23594-113945

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 20
-Section 45
-Paragraph 11
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=18498875&loc=d3e39076-109324

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- Definition

Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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