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Restructuring Costs (Summary Of Restructuring Expense Accruals) (Details) - Severance And Other Employee Costs [Member] $ in Thousands	6 Months Ended
	Jul. 03, 2015 USD ($)
Restructuring Cost and Reserve [Line Items]
Accrual balance	$ 270
Expenditures	$ (270)
Accrual balance

X

- Definition

Restructuring expense accrual addition.

+ References

No definition available.

+ Details

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

X

- Definition

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

No definition available.

+ Details

Name:	us-gaap_RestructuringCostAndReserveLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 420



-SubTopic 10



-Section S99



-Paragraph 2



-Subparagraph (SAB TOPIC 5.P.4(b))



-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747



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



-Publisher SEC



-Name Staff Accounting Bulletin (SAB)



-Number Topic 5



-Section P



-Subsection 3, 4

+ Details

Name:	us-gaap_RestructuringReserve
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_RestructuringCostAndReserveAxis=us-gaap_EmployeeSeveranceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: