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Basis of Presentation and General Information (Carrying Amount And Activity Of Goodwill) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 01, 2016	Jan. 02, 2015
Carrying amount and activity of goodwill
Goodwill, Beginning Balance	$ 75,429	$ 76,283
Foreign currency translation adjustment	(845)	(854)
Goodwill, Ending Balance	74,584	75,429
The Hackett Group [Member]
Carrying amount and activity of goodwill
Goodwill, Beginning Balance	44,295	45,149
Foreign currency translation adjustment	(845)	(854)
Goodwill, Ending Balance	43,450	44,295
Hackett Technology Solutions [Member]
Carrying amount and activity of goodwill
Goodwill, Beginning Balance	$ 31,134	$ 31,134
Foreign currency translation adjustment
Goodwill, Ending Balance	$ 31,134	$ 31,134

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

+ Details

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X

- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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X

- Definition

Amount of increase (decrease) from foreign currency translation adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

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- Details

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X

- Details

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