Shareholders' Equity (Details) (USD $) In Millions, except Share data, unless otherwise specified	1 Months Ended	3 Months Ended	9 Months Ended
Mar. 30, 2012	Sep. 28, 2012	Sep. 28, 2012
Shareholders Equity (Textual) [Abstract]
Number of stock repurchased in Tender Offer	11,000,000
Price per share repurchased in Tender Offer	$ 5.00
Stock repurchase cost of Tender Offer net of fees and expenses related to Tender Offer	$ 55.0
Percentage of Issued and Outstanding shares repurchased in Tender Offer	27.00%
Share repurchased		0	0
Amount available under Company Repurchase Plan		$ 0.6	$ 0.6

Amount available under Repurchase Plan.

No definition available.

Name:	hckt_AmountAvailableForShareRepurchasePlan
Namespace Prefix:	hckt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage of Issued and Outstanding shares that were purchased as part of Tender Offer.

+ References

No definition available.

+ Details

Name:	hckt_PercentageOfOutstandingSharesRepurchasedDuringTenderOffer
Namespace Prefix:	hckt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Price per share that were purchased as part of Tender Offer.

+ References

No definition available.

+ Details

Name:	hckt_PricePerShareStockRepurchasedDuringTenderOffer
Namespace Prefix:	hckt_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	hckt_ShareholdersEquityTextualAbstract
Namespace Prefix:	hckt_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of shares that have been repurchased as part of Tender Offer.

+ References

No definition available.

+ Details

Name:	hckt_StockRepurchasedDuringTenderOfferShares
Namespace Prefix:	hckt_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Equity impact of the value of stock that has been repurchased as part of the Tender Offer, excluding fees and expenses related to the Tender Offer.

+ References

No definition available.

+ Details

Name:	hckt_StockRepurchaseValueDuringTenderOfferNet
Namespace Prefix:	hckt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Number of shares that have been repurchased during the period and are being held in treasury.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 12

-Paragraph 10

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

+ Details

Name:	us-gaap_TreasuryStockSharesAcquired
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration