Name:	hckt_CompensationCostNotYetRecognizedOnNonvestedCommonStockSubjectToVestingRequirements
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As of the balance sheet date, the aggregate unrecognized cost of restricted stock unit-based awards made to employees under equity-based compensation awards that have yet to vest.

No definition available.

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Data Type:	xbrli:monetaryItemType
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As of the balance sheet date, the aggregate unrecognized cost of nonvested common stock subject to vesting requirements made to employees.

No definition available.

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Data Type:	xbrli:monetaryItemType
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The trailing period upon which each growth metric is measured.

No definition available.

Name:	hckt_GrowthMetricTrailingPeriod
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Data Type:	xbrli:durationItemType
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The number of nonvested common stock subject to vesting requirements, outstanding as of the balance sheet date.

No definition available.

Name:	hckt_NumberOfNonvestedCommonStockSubjectToVestingRequirements
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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

Performance based stock option grant pro forma EBITDA percentage growth requirement.

No definition available.

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Data Type:	num:percentItemType
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Period Type:	duration

Performance based stock option grant pro forma EPS percentage growth requirement.

No definition available.

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Data Type:	num:percentItemType
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The number of restricted stock unit grants made during the period.

No definition available.

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Data Type:	xbrli:sharesItemType
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The weighted average fair value of nonvested restricted stock unit-based awards for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

No definition available.

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options and common stock subject to vesting requirements, that validly exist and are outstanding as of the balance sheet date.

No definition available.

Name:	hckt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAndCommonStockSubjectToVestingRequirementsNonvestedNumber
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Data Type:	xbrli:sharesItemType
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Share Based Compensation, Percentage Of Awards Granted Vested During Period

No definition available.

Name:	hckt_ShareBasedCompensationPercentageOfAwardsGrantedVestedDuringPeriod
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Data Type:	num:percentItemType
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Share Based Compensation, Term Of Award

No definition available.

Name:	hckt_ShareBasedCompensationTermOfAward
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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

The weighted average fair value of nonvested common stock subject to vesting requirements for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

No definition available.

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Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (i)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Data Type:	xbrli:durationItemType
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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)(iii)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Period Type:	duration

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Gross number of share options (or share units) granted during the period.

No definition available.

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

Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

Name:	us-gaap_AwardTypeAxis=us-gaap_PerformanceSharesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

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Namespace Prefix:
Data Type:	na
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