Geographic and Group Information (Details) (USD $) In Millions, unless otherwise specified	Jun. 28, 2013	Dec. 28, 2012
Geographic and Group Information [Abstract]
Goodwill included in foreign assets	$ 14.8	$ 15.6
Intangible assets included in foreign assets		$ 0.1

Acquired intangible asset amount included in foreign asset.

No definition available.

Name:	hckt_AcquiredIntangibleAssetAmountIncludedInForeignAsset
Namespace Prefix:	hckt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant