The Hackett Group, Inc. (HCKT) 10-K 18 Mar 15 2014 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
	Jan. 02, 2015	Mar. 10, 2015	Jun. 27, 2014
Document and Entity Information [Abstract]
Entity Registrant Name	HACKETT GROUP, INC.
Entity Central Index Key	1057379
Document Type	10-K
Document Period End Date	2-Jan-15
Amendment Flag	FALSE
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	-1
Entity Filer Category	Accelerated Filer
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float			$132,322,230
Entity Common Stock, Shares Outstanding		29,842,993

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Jan. 02, 2015	Dec. 27, 2013
In Thousands, unless otherwise specified
Current assets:
Cash and cash equivalents	$14,608	$18,199
Accounts receivable and unbilled revenue, net of allowance of $1,330 and $1,674 at January 2, 2015 and December 27, 2013, respectively	37,421	34,011
Deferred tax asset, net	2,828	5,130
Prepaid expenses and other current assets	2,199	2,283
Total current assets	57,056	59,623
Restricted cash		354
Property and equipment, net	13,753	13,019
Other assets	6,548	1,039
Goodwill, net	75,429	76,283
Total assets	152,786	150,318
Current liabilities:
Accounts payable	7,909	8,080
Accrued expenses and other liabilities	30,901	25,646
Total current liabilities	38,810	33,726
Non-current deferred tax liability, net	5,925	4,387
Long-term debt	18,263	19,029
Total liabilities	62,998	57,142
Commitments and contingencies
Shareholders' equity:
Preferred stock, $.001 par value, 1,250,000 shares authorized, none issued and outstanding
Common stock, $.001 par value, 125,000,000 shares authorized; 52,203,395 and 52,143,103 shares issued at January 2, 2015 and December 27, 2013, respectively	53	52
Additional paid-in capital	264,912	261,861
Treasury stock, at cost, 23,989,776 and 22,189,409 shares at January 2, 2015 and December 27, 2013, respectively	-91,335	-80,406
Accumulated deficit	-77,677	-83,880
Accumulated other comprehensive loss	-6,165	-4,451
Total shareholders' equity	89,788	93,176
Total liabilities and shareholders' equity	$152,786	$150,318

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Jan. 02, 2015	Dec. 27, 2013
In Thousands, except Share data, unless otherwise specified
Consolidated Balance Sheets [Abstract]
Accounts receivable and unbilled revenue, allowance	$1,330	$1,674
Preferred stock, par value	$0.00	$0.00
Preferred stock, shares authorized	1,250,000	1,250,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$0.00	$0.00
Common stock, shares authorized	125,000,000	125,000,000
Common stock, shares issued	53,203,395	52,143,103
Treasury stock, at cost, shares	23,989,776	22,189,409

Consolidated_Statements_of_Ope

Consolidated Statements of Operations (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Share data, unless otherwise specified	Jan. 02, 2015	Sep. 26, 2014	Jun. 27, 2014	Mar. 28, 2014	Dec. 27, 2013	Sep. 27, 2013	Jun. 28, 2013	Mar. 29, 2013	Jan. 02, 2015	Dec. 27, 2013	Dec. 28, 2012
Revenue:
Revenue before reimbursements									$213,519	$200,391	$199,749
Reimbursements									23,218	23,439	22,987
Total revenue	60,343	60,437	61,052	54,905	52,604	57,916	58,961	54,349	236,737	223,830	222,736
Cost of service:
Personnel costs before reimbursable expenses (includes $3,556, $3,284 and $2,990 of stock compensation expense in 2014, 2013 and 2012, respectively)									138,958	130,456	125,912
Reimbursable expenses									23,218	23,439	22,987
Total cost of service									162,176	153,895	148,899
Selling, general and administrative costs (includes $2,814, $2,835 and $2,524 of stock compensation expense in 2014, 2013 and 2012, respectively)									61,386	54,208	56,997
Bargain purchase gain from acquisition									-3,015
Restructuring costs (benefit)				3,600					3,604		-211
Total costs and operating expenses									224,151	208,103	205,685
Operating income	4,181	5,059	5,026	-1,680	2,396	4,717	5,085	3,529	12,586	15,727	17,051
Other income (expense):
Interest income									6	7	20
Interest expense									-626	-472	-630
Income from continuing operations before income taxes									11,966	15,262	16,441
Income tax expense (benefit)									2,255	6,398	-478
Income from continuing operations	4,691	3,591	3,475	-2,046	1,206	2,699	2,930	2,029	9,711	8,864	16,919
Loss from discontinued operations						-64		-71		-135	-222
Net income	$4,691	$3,591	$3,475	($2,046)	$1,206	$2,635	$2,930	$1,958	$9,711	$8,729	$16,697
Basic net income per common share:
Income per common share from continuing operations	$0.17	$0.13	$0.12	($0.07)	$0.04	$0.09	$0.10	$0.06	$0.34	$0.29	$0.54
Loss per common share from discontinued operations											($0.01)
Net income per common share	$0.17	$0.13	$0.12	($0.07)	$0.04	$0.09	$0.10	$0.06	$0.34	$0.29	$0.53
Diluted net income per common share:
Income per common share from continuing operations	$0.16	$0.12	$0.12	($0.07)	$0.04	$0.08	$0.09	$0.07	$0.33	$0.28	$0.51
Loss per common share from discontinued operations								($0.01)		($0.01)	($0.01)
Net income per common share	$0.16	$0.12	$0.12	($0.07)	$0.04	$0.08	$0.09	$0.06	$0.33	$0.27	$0.50
Weighted average common shares outstanding:
Basic									28,718,263	30,283,298	31,703,544
Diluted									29,881,002	32,115,665	33,510,712

Consolidated_Statements_of_Ope1

Consolidated Statements of Operations (Parenthetical) (USD $)	3 Months Ended				12 Months Ended
In Thousands, unless otherwise specified	Jan. 02, 2015	Sep. 26, 2014	Jun. 27, 2014	Mar. 28, 2014	Jan. 02, 2015	Dec. 27, 2013	Dec. 28, 2012
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total share based compensation					$6,370	$6,119	$5,522
Cost of Sales [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total share based compensation	1,029	842	999	686	3,556	3,284	2,990
Selling General and Administrative [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total share based compensation	$656	$814	$691	$653	$2,814	$2,835	$2,524

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jan. 02, 2015	Dec. 27, 2013	Dec. 28, 2012
Consolidated Statements of Comprehensive Income [Abstract]
Net income	$9,711	$8,729	$16,697
Foreign currency translation adjustment	-1,714	53	938
Total comprehensive income	$7,997	$8,782	$17,635

Consolidated_Statements_of_Sha

Consolidated Statements of Shareholders' Equity (USD $)	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
In Thousands, except Share data
Balance at Dec. 30, 2011	$61	$313,202	($74,444)	($103,129)	($5,442)	$130,248
Balance, Shares at Dec. 30, 2011	61,315		-21,171
Issuance of common stock	2	231				233
Issuance of common stock, Shares	1,921
Common stock purchased through Tender Offer	-11	-55,576				-55,587
Common stock purchased through Tender Offer, Shares	-11,000
Amortization of restricted stock units and common stock subject to vesting requirements		5,278				5,278
Dividend payment				-3,081		-3,081
Net income				16,697		16,697
Foreign currency translation					938	938
Balance at Dec. 28, 2012	52	263,135	-74,444	-89,513	-4,504	94,726
Ending Balance, Shares at Dec. 28, 2012	52,236		-21,171
Issuance of common stock	1	-95				-94
Issuance of common stock, Shares	890
Common stock purchased through Tender Offer	-1	-7,169				-7,170
Common stock purchased through Tender Offer, Shares	-983
Treasury stock purchased			-5,962			-5,962
Treasury stock purchased, Shares			-1,018
Amortization of restricted stock units and common stock subject to vesting requirements		5,990				5,990
Dividend payment				-3,096		-3,096
Net income				8,729		8,729
Foreign currency translation					53	53
Balance at Dec. 27, 2013	52	261,861	-80,406	-83,880	-4,451	93,176
Ending Balance, Shares at Dec. 27, 2013	52,143		-22,189
Issuance of common stock	1	-1,837				-1,836
Issuance of common stock, Shares	1,060
Common stock purchased through Tender Offer	-11,000
Treasury stock purchased			-10,929			-10,929
Treasury stock purchased, Shares	-1,800,000		-1,800
Amortization of restricted stock units and common stock subject to vesting requirements		4,888				4,888
Dividend payment				-3,508		-3,508
Net income				9,711		9,711
Foreign currency translation					-1,714	-1,714
Balance at Jan. 02, 2015	$53	$264,912	($91,335)	($77,677)	($6,165)	$89,788
Ending Balance, Shares at Jan. 02, 2015	53,203		-23,989

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jan. 02, 2015	Dec. 27, 2013	Dec. 28, 2012
Cash flows from operating activities:
Net income	$9,711	$8,729	$16,697
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation expense	2,357	1,883	2,080
Amortization expense	2,212	602	547
Amortization of debt issuance costs	95	96	82
Provision for doubtful accounts	785	742	657
Loss (gain) on foreign currency transaction	8	-4	187
Restructuring costs (benefit)	3,604		-211
Non-cash stock compensation expense	6,370	6,119	5,522
Bargain purchase gain from acquisition	-3,015
Deferred income tax expense (benefit)	1,949	5,705	-1,191
Changes in assets and liabilities, net of acquisition:
(Increase) decrease in accounts receivable and unbilled revenue	-2,848	1,841	-2,317
Decrease in prepaid expenses and other assets	42	514	95
(Decrease) increase in accounts payable	-171	369	278
Decrease in accrued expenses and other liabilities	-5,087	-2,337	-2,074
Net cash provided by operating activities	16,012	24,259	20,352
Cash flows from investing activities:
Purchases of property and equipment	-3,097	-2,068	-3,252
Cash consideration paid for acquisition	-2,877
Cash acquired in acquisition	522
Decrease in restricted cash	354	329	202
Net cash used in investing activities	-5,098	-1,739	-3,050
Cash flows from financing activities:
Debt proceeds	10,500	11,002	40,000
Payment of debt proceeds	-11,487	-16,974	-15,000
Debt issuance costs	-22	-129	-482
Dividends paid	-3,508	-3,096	-3,081
Proceeds from issuance of common stock	937	1,080	752
Repurchases of common stock	-10,955	-13,132	-55,587
Net cash used in financing activities	-14,535	-21,249	-33,398
Effect of exchange rate on cash	30	22	66
Net (decrease) increase in cash and cash equivalents	-3,591	1,293	-16,030
Cash and cash equivalents at beginning of year	18,199	16,906	32,936
Cash and cash equivalents at end of year	14,608	18,199	16,906
Supplemental disclosure of cash flow information:
Cash (refunded) paid for income taxes	893	684	230
Cash paid for interest	$538	$338	$547

Basis_of_Presentation_and_Gene

Basis of Presentation and General Information	12 Months Ended
	Jan. 02, 2015
Basis Of Presentation And General Information [Abstract]
Basis Of Presentation And General Information	1. Basis of Presentation and General Information
	Nature of Business
	The Hackett Group, Inc. (“Hackett,” or the “Company”) is a global strategic advisory firm and a leader in best practice advisory, benchmarking, and transformation consulting services, including shared services, offshoring and outsourcing advice.
	Basis of Presentation and Consolidation
	The accompanying consolidated financial statements include the Company’s accounts and those of its wholly-owned subsidiaries which the Company is required to consolidate. The Company consolidates the assets, liabilities, and results of operations of its entities.
	Fiscal Year
	The Company’s fiscal year generally consists of a 52-week period and periodically consists of a 53-week period as each fiscal year ends on the Friday closest to December 31. Fiscal years 2014, 2013 and 2012 ended on January 2, 2015, December 27, 2013 and December, 28, 2012, respectively. References to a year included in the consolidated financial statements refer to a fiscal year rather than a calendar year.
	Cash and Cash Equivalents and Restricted Cash
	The Company considers all short-term investments with maturities of three months or less to be cash equivalents. Due to the short maturity period of cash equivalents, the carrying amount of these instruments approximates fair market value. The Company places its temporary cash investments with high credit quality financial institutions. At times, such investments may be in excess of the F.D.I.C. insurance limits. The Company has not experienced any loss to date on these investments.
	Restricted cash in 2013 and 2012 related to future employee compensation agreements. As of January 2, 2015, the Company did not have any restricted cash balances.
	Allowance for Doubtful Accounts
	The Company maintains allowances for doubtful accounts for estimated losses resulting from its clients not making required payments. Management makes estimates of the collectability of accounts receivable. Management also critically reviews accounts receivable and analyzes historical bad debts, past-due accounts, client credit-worthiness and current economic trends when evaluating the adequacy of the allowance for doubtful accounts. If the financial condition of the Company’s clients were to deteriorate, resulting in their inability to make payments, additional allowances may be required.
	Dividends
	In December 2012, the Company’s Board of Directors approved the initiation of an annual cash dividend program in the amount of $0.10 per share. In 2014, the Company’s Board of Directors approved an increase in the dividend payment from $0.10 per share to $0.12 per share. Subsequent to fiscal 2014, the Company’s Board of Directors approved a semi-annual dividend program and an increase in the dividend to $0.14 per share. The Company’s dividend policy is reviewed periodically by the Board of Directors. The amount and timing of all dividend payments is subject to the discretion of the Board of Directors and will depend upon business conditions, contractual obligations, legal restrictions, results of operations, financial conditions and other factors.
	Property and Equipment, Net
	Property and equipment are recorded at cost. Depreciation is calculated to amortize the depreciable assets over their useful lives using the straight-line method and commences when the asset is placed in service. The range of estimated useful lives is three to seven years. Leasehold improvements are amortized on a straight-line basis over the term of the lease or the estimated useful life of the improvement, whichever is shorter. Expenditures for repairs and maintenance are charged to expense as incurred. Expenditures for betterments and major improvements are capitalized. The carrying amount of assets sold or retired and related accumulated depreciation are removed from the balance sheet in the year of disposal and any resulting gains or losses are included in the consolidated statements of operations.
	The Company capitalizes the costs of internal-use software, which generally includes hardware, software, and payroll-related costs for employees who are directly associated with, and who devote time, to the development of internal-use computer software.
	Long-Lived Assets (excluding Goodwill and Other Intangible Assets)
	Long-lived assets are reviewed for impairment whenever events or circumstances indicate that the carrying amount of an asset may not be fully recoverable. If an evaluation is required, the estimated future undiscounted cash flows associated with the asset are compared to the asset’s carrying amount to determine if there has been an impairment. The amount of an impairment is calculated as the difference between the fair value of the asset and its carrying value. Estimates of future undiscounted cash flows are based on management’s view of growth rates for the related business, anticipated future economic conditions and estimates of residual values.
	Business Combinations
	The Company accounts for business combinations using the acquisition method of accounting. This method requires the use of fair values in determining the carrying values of the purchased assets and assumed liabilities, which are recorded at fair value at acquisition date, and identifiable intangible assets are recorded at fair value. Costs directly related to the business combinations are recorded as expenses as they are incurred. Fair values are subject to refinement for up to one year after the closing date of an acquisition as information relative to closing date fair values become available. A bargain purchase gain on an acquisition occurs when the net of the estimated fair value of the assets acquired and liabilities assumed exceeds the consideration paid.
	Goodwill and Other Intangible Assets
	Goodwill and intangible assets deemed to have indefinite lives are not amortized, but rather are tested for impairment on an annual basis, or more frequently if events or changes in circumstances indicate potential impairment. Finite-lived intangible assets are amortized over their useful lives. The excess cost of the acquisition over the fair value of the net assets acquired is recorded as goodwill.
	Goodwill is tested at least annually for impairment at the reporting unit level utilizing the market approach. The reporting units consist of The Hackett Group (including Benchmarking, Business Transformation, Business Transformation Enterprise Performance Management (“EPM”), Strategy and Operations and Executive Advisory Programs) and Hackett Technology Solutions (including SAP ERP and SAP Application Maintenance and Support (“AMS”), Oracle EPM and EPM AMS). In assessing the recoverability of goodwill and intangible assets, the Company utilizes the market approach and makes estimates based on assumptions regarding various factors to determine if impairment tests are met. The market approach utilizes valuation multiples based on operating data from publicly traded companies within the same industry. Multiples derived from guideline companies provide an indication of how much a knowledgeable investor in the marketplace would be willing to pay for a company. These multiples are then applied to the Company’s reporting units to arrive at an indication of value. This approach contains management’s judgment, using appropriate and customary assumptions available at the time.
	During the year ended December 27, 2013, the Company exited its Oracle ERP implementation business practice and as a result allocated $0.2 million of related goodwill to this transaction. The Oracle ERP implementation business is separate and distinct from the Company's Oracle EPM business and was included in the Hackett Technology Solutions reporting unit.
	The Company performed its annual impairment test of goodwill in the fourth quarter of fiscal years 2014 and 2013 and determined that goodwill was not impaired. The carrying amount and activity of goodwill attributable to The Hackett Group and Hackett Technology Solutions was as follows (in thousands):
				Hackett
		The Hackett		Technology
		Group		Solutions		Total
	Balance at December 28, 2012	$	44,887	$	31,333	$	76,220
	Allocation of goodwill related to discontinued operations		—		-199		-199
	Foreign currency translation adjustment		262		—		262
	Balance at December 27, 2013		45,149		31,134		76,283
	Foreign currency translation adjustment		-854		—		-854
	Balance at January 2, 2015	$	44,295	$	31,134	$	75,429
	Other intangible assets are tested for potential impairment whenever events or changes in circumstances suggest that the carrying value of an asset may not be fully recoverable. If an evaluation is required, the estimated future undiscounted cash flows associated with the asset are compared to the asset’s carrying amount to determine if there has been an impairment. The amount of an impairment is calculated as the difference between the fair value of the asset and its carrying value. Estimates of future undiscounted cash flows are based on management’s view of growth rates for the related business, anticipated future economic conditions and estimates of residual values. Other intangible assets arise from business combinations and consist of customer relationships, customer backlog and trademarks that are amortized on a straight-line or accelerated basis over periods of up to five years.
	Other intangible assets, included in other assets in the accompanying consolidated balance sheets, consist of the following (in thousands):
				January 2,		December 27,
				2015		2013
	Gross carrying amount			$	22,448	$	14,699
	Accumulated amortization				-16,472		-14,260
	Foreign currency translation adjustment				33		6
				$	6,009	$	445
	All of the Company’s intangible assets are expected to be fully amortized by the end of 2018.  The estimated future amortization expense of intangible assets as of January 2, 2015 is as follows: $2.2 million in 2015,  $1.2 million in 2016,  $1.3 million in 2017 and $1.3 million in 2018. See Note 16 for further discussion.
	Revenue Recognition
	Revenue is principally derived from fees for services generated on a project-by-project basis. Revenue for services rendered is recognized on a time and materials basis or on a fixed-fee or capped-fee basis.
	Revenue for time and materials contracts is recognized based on the number of hours worked by our consultants at an agreed upon rate per hour and is recognized in the period in which services are performed.
	Revenue related to fixed-fee or capped-fee contracts is recognized on the proportional performance method of accounting based on the ratio of labor hours incurred to estimated total labor hours. This percentage is multiplied by the contracted dollar amount of the project to determine the amount of revenue to recognize in an accounting period. The contracted dollar amount used in this calculation excludes the amount the client pays for reimbursable expenses. There are situations where the number of hours to complete projects may exceed the original estimate. These increases can be as a result of an increase in project scope, unforeseen events that arise, or the inability of the client or the delivery team to fulfill their responsibilities. On an on-going basis, project delivery, Office of Risk Management and finance personnel review hours incurred and estimated total labor hours to complete projects. Any revisions in these estimates are reflected in the period in which they become known. If the Company estimates indicate that a contract loss will occur, a loss provision will be recorded in the period in which the loss first becomes probable and reasonably estimable. Contract losses are determined to be the amount by which the estimated direct costs of the contract exceed the estimated total revenue that will be generated by the contract and are included in total cost of service.
	Revenue from advisory services is recognized ratably over the life of the agreements.
	Additionally, the Company earns revenue from the resale of software licenses and maintenance contracts. Revenue for the resale software and software licenses is recognized upon contract execution and customer receipt of software. Revenue from maintenance contracts is recognized ratably over the life of the agreements.
	Revenue for contracts with multiple elements is allocated based on the respective selling price of the individual elements and is recognized in accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 605-25, Multiple-Deliverable Revenue Arrangements, a consensus of the FASB Emerging Issues Task Force.
	Unbilled revenue represents revenue for services performed that have not been invoiced. If the Company does not accurately estimate the scope of the work to be performed, or does not manage its projects properly within the planned periods of time, or does not meet clients’ expectations under the contracts, then future consulting margins may be negatively affected or losses on existing contracts may need to be recognized. Any such reductions in margins or contract losses could be material to the Company’s results of operations.
	Sales tax collected from customers and remitted to the applicable taxing authorities is accounted for on a net basis, with no impact on revenue.
	Revenue before reimbursements excludes reimbursable expenses charged to clients. Reimbursements, which include travel and out-of-pocket expenses, are included in revenue, and an equivalent amount of reimbursable expenses is included in cost of service.
	The agreements entered into in connection with a project, whether time and materials based or fixed-fee or capped-fee based, typically allow clients to terminate early due to breach or for convenience with 30 days’ notice. In the event of termination, the client is contractually required to pay for all time, materials and expenses incurred by the Company through the effective date of the termination. In addition, from time to time the Company enters into agreements with its clients that limit its right to enter into business relationships with specific competitors of that client for a specific time period. These provisions typically prohibit the Company from performing a defined range of services which it might otherwise be willing to perform for potential clients. These provisions are generally limited to six to twelve months and usually apply only to specific employees or the specific project team.
	Stock Based Compensation
	The Company recognizes compensation expense for awards of equity instruments to employees based on the grant-date fair value of those awards, with limited exceptions, over the requisite service period.
	Restructuring Reserves
	Restructuring reserves reflect judgments and estimates of the Company’s ultimate costs of severance, closure and consolidation of facilities and settlement of contractual obligations under its operating leases, including sublease rental rates, absorption period to sublease space and other related costs. The Company reassesses the reserve requirements to complete each individual plan under the restructuring programs at the end of each reporting period. If these estimates change in the future or actual results differ from the Company’s estimates, additional charges may be required.
	Income Taxes
	Income taxes are accounted for in accordance with FASB ASC Topic 740, Income Taxes (“ASC 740”). Under ASC 740, deferred tax assets and liabilities are determined based on differences between the financial reporting carrying values and tax bases of assets and liabilities, and are measured by using enacted tax rates expected to apply to taxable income in the years in which those differences are expected to reverse. Deferred income taxes also reflect the impact of certain state operating loss and tax credit carryforwards. A valuation allowance is provided if the Company believes it is more likely than not that all or some portion of the deferred tax asset will not be realized. An increase or decrease in the valuation allowance, if any, that results from a change in circumstances, and which causes a change in the Company’s judgment about the realizability of the related deferred tax asset, is included in the tax provision.
	In accordance with FASB ASC Topic 740-10, Accounting for Uncertainty in Income Taxes (“ASC 740-10”), the Company adopted a more-likely-than-not threshold for financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. This interpretation also provides guidance on de-recognition of income tax assets and liabilities, classification of current and deferred income tax assets and liabilities, accounting for interest and penalties associated with tax positions, accounting for income taxes in interim periods and income tax disclosures. The Company reports penalties and tax-related interest expense as a component of income tax expense.
	Net Income per Common Share
	Basic net income per common share is computed by dividing net income by the weighted average number of common shares outstanding during the period. With regard to common stock subject to vesting requirements and restricted stock units issued to employees, the calculation includes only the vested portion of such stock.
The potential issuance of common shares upon the exercise, conversion or vesting of unvested restricted stock units, common stock subject to vesting, stock options and stock appreciation right units ("SARs"), as calculated under the treasury stock method, may be dilutive. Diluted net income per share is computed by dividing the net income by the weighted average number of common shares outstanding, and will increase by the assumed conversion of other potentially dilutive securities during the period.
The following table reconciles basic and diluted weighted average shares:
	Year Ended
	January 2,		December 27,		December 28,
	2015		2013		2012
Basic weighted average common shares outstanding		28,718,263		30,283,298		31,703,544
Effect of dilutive securities:
Unvested restricted stock units and common stock subject
to vesting requirements issued to employees		1,152,974		1,809,565		1,765,351
Common stock issuable upon the exercise of stock options		9,765		22,802		41,817
Dilutive weighted average common shares outstanding		29,881,002		32,115,665		33,510,712
There were 0.3 million, 0.8 million, and 3.9 million shares of awards granted excluded from the above reconciliation for the years ended 2014, 2013, and 2012, respectively, as their inclusion would have had an anti-dilutive effect on diluted net income per share. The decrease in 2013 of anti-dilutive shares is due to the issuance of performance-based options granted during the quarter ended March 30, 2012, which were surrendered and replaced with SARs in 2013. See Note 11 for further detail.
Fair Value of Financial Instruments
The Company’s financial instruments consist of cash and cash equivalents, restricted cash, accounts receivable and unbilled revenue, accounts payable, accrued expenses and other liabilities and debt. As of January 2, 2015 and December 27, 2013, the carrying amount of each financial instrument, with the exception of debt, approximated the instrument’s fair value due to the short-term nature and maturity of these instruments.
The Company uses significant other observable market data or assumptions (Level 2 inputs as defined in accounting guidance) that it believes market participants would use in pricing debt. The fair value of the debt approximated its carrying amount using Level 2 inputs, due to the short-term variable interest rates based on market rates utilizing the market approach.
Concentration of Credit Risk
The Company provides services primarily to Global 2000 companies and other sophisticated buyers of business consulting and information technology services. The Company performs ongoing credit evaluations of its major customers and maintains reserves for potential credit losses. In 2014,  2013 and 2012 no customer accounted for more than 5% of total revenue.
Management’s Estimates
The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates.
Other Comprehensive Income
The Company reports its comprehensive income in accordance with FASB ASC Topic 220, Comprehensive Income, which establishes standards for reporting and presenting comprehensive income and its components in a full set of financial statements. Other comprehensive income consists of net income and cumulative currency translation adjustments.
Translation of Non-U.S. Currency Amounts
The assets and liabilities held by the Company’s foreign entities that have a functional currency other than the U.S. Dollar are translated into U.S. Dollars at exchange rates in effect at the end of each reporting period. Foreign entity revenue and expenses are translated into U.S. Dollars at the average rates that prevailed during the period. The resulting net translation gains and losses are reported as foreign currency translation adjustments in shareholders’ equity as a component of accumulated other comprehensive income. Gains and losses from foreign currency transactions are included in net income.
Segment Reporting
The Company engages in business activities in one operating segment, which provides business and technology consulting services.
Recent Accounting Pronouncements
In May 2014, the FASB issued guidance on revenue recognition, which provides for a single, principles-based model for revenue recognition and replaces the existing revenue recognition guidance. The guidance is effective for annual and interim periods beginning on or after December 15, 2016 and will replace most existing revenue recognition guidance under U.S. GAAP when it becomes effective. It permits the use of either a retrospective or cumulative effect transition method and early adoption is not permitted. The Company has not yet selected a transition method and is in the process of evaluating the effect this standard will have on its consolidated financial statements and related disclosures.
Reclassifications
Certain prior period amounts in the consolidated financial statements, and notes thereto, have been reclassified to conform to current period presentation.

Fair_Value_Measurement

Fair Value Measurement	12 Months Ended
	Jan. 02, 2015
Fair Value Measurement [Abstract]
Fair Value Measurement	2. Fair Value Measurement
	The Company records its assets and liabilities in accordance with FASB ASC Topic 820, Fair Value Measurements and Disclosures (“ASC 820”). ASC 820 defines fair value as the exchange price that would be received for an asset or paid to transfer a liability (exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. ASC 820 also establishes a fair value hierarchy which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. ASC 820 describes the following three levels of inputs that may be used to measure fair value:
	Level 1: Quoted market prices in active markets for identical assets or liabilities
	Level 2: Observable market-based inputs or unobservable inputs that are corroborated by market data
	Level 3: Unobservable inputs that are not corroborated by market data
	As of January 2, 2015 and December 27, 2013, the carrying value of cash and cash equivalents, restricted cash, accounts receivable and unbilled revenue, accounts payable, leases and accrued expenses and other liabilities, with the exception of debt, approximated the respective fair value due to the short-term nature and maturity of these instruments.
	The Company uses significant other observable market data or assumptions (Level 2 inputs as defined in accounting guidance) that it believes market participants would use in pricing debt. The fair value of the debt approximated its carrying amount using Level 2 inputs, due to the short-term variable interest rates based on market rates utilizing the market approach.

Accounts_Receivable_And_Unbill

Accounts Receivable And Unbilled Revenue, Net	12 Months Ended
	Jan. 02, 2015
Accounts Receivable And Unbilled Revenue, Net [Abstract]
Accounts Receivable And Unbilled Revenue, Net	3. Accounts Receivable and Unbilled Revenue, Net
	Accounts receivable and unbilled revenue, net, consists of the following (in thousands):
		January 2,		December 27,
		2015		2013
	Accounts receivable	$	28,154	$	27,147
	Unbilled revenue		10,597		8,538
	Allowance for doubtful accounts		-1,330		-1,674
		$	37,421	$	34,011
	Accounts receivable as of January 2, 2015 and December 27, 2013, is net of uncollected advanced billings. Unbilled revenue as of January 2, 2015 and December 27, 2013 includes recognized recoverable costs and accrued profits on contracts for which billings had not been presented to clients.

Property_And_Equipment_Net

Property And Equipment, Net	12 Months Ended
	Jan. 02, 2015
Property and Equipment, net [Abstract]
Property And Equipment, Net	4.  Property and Equipment, net
		January 2,		December 27,
		2015		2013
	Equipment	$	6,044	$	4,814
	Software		21,604		19,815
	Leasehold improvements		454		518
	Furniture and fixtures		498		609
			28,600		25,756
	Less accumulated depreciation		-14,847		-12,737
		$	13,753	$	13,019
	Depreciation expense for the years ended January 2, 2015, December 27, 2013 and December 28, 2012, was $2.4 million, $1.9 million, and $2.1 million, respectively, and is included in selling, general and administrative costs in the accompanying consolidated statements of operations.

Restricted_Cash

Restricted Cash	12 Months Ended
	Jan. 02, 2015
Restricted Cash [Abstract]
Restricted Cash	5. Restricted Cash
	As of December 27, 2013, the Company had $0.4 million on deposit with financial institutions that served as collateral for amounts related to certain employee compensation agreements. As of January 2, 2015, the Company did not have any restricted cash balances.

Accrued_Expenses_And_Other_Lia

Accrued Expenses And Other Liabilities	12 Months Ended
	Jan. 02, 2015
Accrued Expenses And Other Liabilities [Abstract]
Accrued Expenses And Other Liabilities	6. Accrued Expenses and Other Liabilities
	Accrued expenses and other liabilities consist of the following (in thousands):
		January 2,		December 27,
		2015		2013
	Accrued compensation and benefits	$	3,266	$	5,163
	Accrued bonuses		7,682		5,899
	Accrued restructuring related expenses		270		134
	Deferred revenue		8,896		8,345
	Accrued Technolab earnout liability		3,440		—
	Accrued sales, use, franchise and VAT tax		1,977		1,393
	Other accrued expenses		5,370		4,712
	Total accrued expenses and other liabilities	$	30,901	$	25,646

Lease_Commitments

Lease Commitments	12 Months Ended
	Jan. 02, 2015
Lease Commitments [Abstract]
Lease Commitments	7. Lease Commitments
	The Company has operating lease agreements for its premises that expire on various dates through December 2022. Rent expense, net of subleases, for the years ended January 2, 2015, December 27, 2013 and December 28, 2012 was $2.2 million, $1.9 million and $2.1 million, respectively.
	Future minimum lease commitments under non-cancelable operating leases as of January 2, 2015, are as follows (in thousands):
		Rental
		Payments
	2015	$	1,933
	2016		1,846
	2017		1,226
	2018		969
	2019		902
	Thereafter		1,151
	Total	$	8,027

Restructuring_Costs

Restructuring Costs	12 Months Ended
	Jan. 02, 2015
Restructuring Costs [Abstract]
Restructuring Costs	8. Restructuring Costs
	During 2014, the Company recorded restructuring costs of $3.6 million, primarily for reductions in consultants and functional support personnel in Europe. These actions were taken as a result of the continued decline in demand in the Company’s European markets. The Company effected these changes to reduce its costs to better align the overall cost structure and organization with anticipated demand for the Company services.
	As of January 2, 2015,  the Company had $0.3 million remaining in commitments relating to employee severance costs and down-sizing of office leases.  As of December 27, 2013, the remaining restructuring reserves related to early vendor termination fees.
	The following tables set forth the detail and activity in the restructuring expense accruals (in thousands):
		Severance and		Exit, Closure
		Other		and
		Employee		Consolidation
		Costs		of Facilities		Total
	Accrual balance at December 28, 2012	$	—	$	246	$	246
	2013 expenditures		—		-112		-112
	Accrual balance at December 27, 2013	$	—	$	134	$	134
	2014 additions		3,534		70		3,604
	2014 expenditures		-3,313		-155		-3,468
	Accrual balance at January 2, 2015	$	221	$	49	$	270

Credit_Facility

Credit Facility	12 Months Ended
	Jan. 02, 2015
Credit Facility [Abstract]
Credit Facility	9. Credit Facility
	On February 21, 2012, the Company entered into a credit agreement with Bank of America, N.A. Under the credit agreement, Bank of America, N.A. agreed to lend the Company up to $20.0 million pursuant to a revolving line of credit (the “Revolver”) and up to $30.0 million pursuant to a term loan (the “Term Loan,” and together with the Revolver, the “Credit Facility”).
	On August 27, 2013, the Company amended and restated the credit agreement (the "Credit Agreement") with Bank of America to finance a tender offer for shares of its common stock completed in October 2013. See Note 12 for further detail. The Credit Agreement was amended and restated to:
		·	provide for up to additional $17.0 million of borrowing under the Term Loan (the "Amended Term Loan" and together with the Revolver, the "Amended Credit Facility") and
		·	extend the maturity date on the Revolver and the Amended Term Loan to August 27, 2018, five years from the date of the amendment and restatement of the Credit Agreement.
	As of January 2, 2015 the Company had $18.3 million principal amount outstanding on the Amended Term Loan and a zero balance outstanding on the Revolver. As of December 27, 2013, the Company had $19.0 million principal amount outstanding on the Amended Term Loan and a zero balance outstanding on the Revolver.
	The obligations of the Company under the Amended Credit Facility are guaranteed by active existing and future material U.S. subsidiaries of the Company and are secured by substantially all of the existing and future property and assets of the Company (subject to certain exceptions).
	The interest rates per annum applicable to loans under the Amended Credit Facility will be at the Company’s option, equal to either a base rate or a LIBOR base rate, plus an applicable margin percentage. As of January 2, 2015, the interest rate per annum was 1.92%. The applicable margin percentage is based on the consolidated leverage ratio. As of January 2, 2015, the applicable margin percentage was 1.75% per annum based on the consolidated leverage ratio, in the case of LIBOR rate advances, and 1.00% per annum, in the case of base rate advances.
	The Company is subject to certain covenants and exceptions, including total consolidated leverage, fixed cost coverage and liquidity requirements.
	In connection with the Credit Facility, the Company incurred $0.6 million of debt issuance costs. These costs are amortized over the remaining life of the Credit Facility and are included in Other Assets in the consolidated balance sheet.
	The Revolver matures on August 27, 2018, whereas the Amended Term Loan requires amortization of principal in equal quarterly payment installments from December 31, 2013 through August 27, 2018. As of January 2, 2015, the Company had prepaid $6.6 million of the Amended Term Loan mandatory principal amortization and did not have an outstanding balance on its Revover. The future schedule of annual amortization of principal is as follows (in thousands):
				Principal
				Amortization
				Payments
	2015			$	—
	2016				4,981
	2017				6,641
	2018				6,641
	Total			$	18,263

Income_Taxes

Income Taxes	12 Months Ended
	Jan. 02, 2015
Income Taxes [Abstract]
Income Taxes	10. Income Taxes
	The Company files federal income tax returns, as well as multiple state, local and foreign jurisdiction tax returns. A number of years may elapse before an uncertain tax position is audited and finally resolved. While it is often difficult to predict the final outcome or the timing of resolution on any particular uncertain tax position, the Company believes that its reserves for income taxes reflect the most probable outcome. The Company adjusts these reserves, as well as the related interest, in light of changing facts and circumstances. The resolution of a matter would be recognized as an adjustment to the provision for income taxes and the effective tax rate in the period of resolution. The Company is no longer subject to examinations of its federal income tax returns by the Internal Revenue Service for years through 2010 and all significant state, local and foreign matters have been concluded for years
	through 2010.
	The components of income before income taxes are as follows (in thousands):
		Year Ended
		January 2,		December 27,		December 28,
		2015		2013		2012
	Domestic	$	6,549	$	15,823	$	15,269
	Foreign		5,417		-696		950
	Income before income taxes	$	11,966	$	15,127	$	16,219
	The components of income tax expense (benefit) are as follows (in thousands):
		Year Ended
		January 2,		December 27,		December 28,
		2015		2013		2012
	Current tax expense (benefit)
	Federal	$	155	$	10	$	-314
	State		131		530		961
	Foreign		132		103		66
			418		643		713
	Deferred tax expense (benefit)
	Federal		200		6,450		4,532
	State		-238		394		-3,587
	Foreign		1,875		-1,089		-2,136
			1,837		5,755		-1,191
	Income tax expense (benefit)	$	2,255	$	6,398	$	-478
	The income tax benefits in 2012 included the release of valuation allowance of $6.7 million.
	A reconciliation of the federal statutory tax rate with the effective tax rate is as follows:
		Year Ended
		January 2,		December 27,		December 28,
		2015		2013		2012
	U.S statutory income tax expense rate	35.0	%	35.0	%	35.0	%
	State income taxes, net of federal income tax expense	-0.6		4.0		8.0
	Valuation reduction	-1		-0.5		-47.7
	Meals and entertainment	2.0		1.7		1.5
	Foreign rate differential	-10.6		1.0		-0.2
	Bargain purchase gain	-8.7		—		—
	Foreign exchange loss	0.1		0.4		0.1
	Other, net	2.6		0.7		0.3
	Effective tax rate	18.8	%	42.3	%	-3	%
	The components of the net deferred income tax asset (liability) are as follows (in thousands):
				Year Ended
				January 2,		December 27,
				2015		2013
	Deferred income tax assets:
	Allowance for doubtful accounts			$	518	$	661
	Net operating loss and tax credits carryforward				9,283		12,855
	Accrued expenses and other liabilities				3,160		3,967
					12,961		17,483
	Valuation allowance				-1,452		-1,569
					11,509		15,914
	Deferred income tax liabilities:
	Depreciation				-4,628		-4,614
	Tax over book amortization on goodwill and intangibles				-9,872		-10,546
	Other items				-106		-11
					-14,606		-15,171
	Net deferred income tax asset (liability)			$	-3,097	$	743
	As of January 2, 2015 the Company had $12.0 million of U.S. federal net operating loss carryforwards available for tax purposes, primarily resulting from a worthless stock deduction taken in 2002, most of which will expire by 2022 if not utilized. As of January 2, 2015, the Company had $3.1 million of U.S. state net operating loss carryforwards. Additionally, at January 2, 2015, the Company had $11.7 million of foreign net operating loss carryforwards, of which $5.5 million related to operations in the U.K., $1.3 million related to operations in France and $0.6 million related to operations in Germany. A significant amount of the foreign net operating losses may be carried forward indefinitely.
	The liability method of accounting for deferred income taxes requires a valuation allowance against deferred tax assets if, based on the weight of available evidence, it is more likely than not that some or all of the deferred tax assets will not be realized. In determining the need for valuation allowances the Company considers evidence such as history of losses and general economic conditions. At January 2, 2015 and December 27, 2013, the Company had a valuation allowance of $1.5 million and $1.6 million to reduce deferred income tax assets primarily related to foreign and state net operating loss and tax credit carryforwards.
	The undistributed earnings in foreign subsidiaries of approximately $2.0 million are permanently invested abroad and will not be repatriated to the U.S. in the foreseeable future. Because they are considered to be indefinitely reinvested, no U.S. federal or state deferred income taxes have been provided on these earnings. Upon distribution of those earnings, in the form of dividends or otherwise, the Company would be subject to both U.S. income taxes (subject to an adjustment for foreign tax credits) and withholding taxes payable to the various foreign countries in which it operates. Because of the availability of U.S. foreign tax credits, it is not practicable to determine the U.S. foreign income tax liability that would be payable if such earnings were not reinvested indefinitely.
	Penalties and tax-related interest expense are reported as a component of income tax expense. For the years ended January 2, 2015 and December 27, 2013 the total amount of accrued income tax-related interest and penalties was $357 thousand and $226 thousand, respectively.
	In accordance with ASC 740-10, the Company prescribes a more-likely-than-not threshold for financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. This interpretation also provides guidance on de-recognition of income tax assets and liabilities, classification of current and deferred income tax assets and liabilities, accounting for interest and penalties associated with tax positions, accounting for income taxes in interim periods and income tax disclosures.
	The following table sets forth the detail and activity of the ASC 740-10 liability during the twelve months ended January 2, 2015 and December 27, 2013 (in thousands):
				Year Ended
				January 2,		December 27,
			2015		2013
Beginning balance			$	716	$	1,015
Additions based on tax positions				76		—
Reduction for prior year tax deductions				—		-299
Ending balance			$	792	$	716
As of January 2, 2015 and December 27, 2013, the ASC 740-10 liability of $0.8 million and $0.7 million, respectively, was classified as a current liability and included in the current portion of the accrued expenses and other liabilities in the accompanying consolidated balance sheets. The Company does not believe there will be any material changes in its unrecognized tax positions over the next twelve months. The reversal of ASC 740-10 tax liabilities as of January 2, 2015 and December 27, 2013 would have a favorable impact on the effective tax rate in future periods.

Stock_Based_Compensation

Stock Based Compensation	12 Months Ended
	Jan. 02, 2015
Stock Based Compensation [Abstract]
Stock Based Compensation	11. Stock Based Compensation
	Stock Plans
	Total share based compensation included in net income for the year ended January 2, 2015 was $6.4 million. The number of shares available for future issuance under the Company's stock plans as of January 2, 2015 were 1,726,938. The Company issues new shares as shares are required to be delivered under the plan.
	Stock Options and SARs
	The Company has granted stock options to employees and directors of the Company at exercise prices equal to the market value of the stock at the date of grant. The options generally vest ratably over four years, based on continued employment, with a maximum term of ten years.
	Stock option activity under the Company’s stock option plans for the year ended January 2, 2015 is summarized as follows:
			Option Shares			Weighted Average		Weighted Average			Aggregate
						Exercise Price		Remaining			Intrinsic Value
								Contractual Term
	Outstanding as of December 27, 2013		366,714		$	4.39
	Exercised		-8,750			4.04
	Forfeited or expired		-60,297			6.35
	Outstanding as of January 2, 2015		297,667		$	4.00		6.79		$	1,399,979
	Exercisable at January 2, 2015		17,667		$	3.96		0.44		$	83,798
	A summary of the Company’s stock option activity for the years ended December 27, 2013 and December 28, 2012 was as follows:
			27-Dec-13					28-Dec-12
			Option Shares			Weighted Average		Option Shares			Weighted Average
						Exercise Price					Exercise Price
	Outstanding at beginning of year		3,898,864		$	4.34		867,375		$	5.53
	Granted (1)		—			—		3,196,563			4.00
	Exercised		-109,683			4.29		-76,986			2.53
	Forfeited or expired (1)		-3,422,467			4.33		-88,088			5.46
	Outstanding at end of year		366,714		$	4.39		3,898,864		$	4.34
	Exercisable at end of year		86,714		$	5.63		702,301		$	5.86
		-1		Includes 2,916,563 of unvested performance-based stock options granted in 2012 and subsequently surrendered and replaced with SARs in 2013 and 470,000 vested stock options surrendered in 2013 and replaced with SARs. See SARs discussion below.
	The fair value of the SARs and stock options is estimated using the Black-Scholes option pricing valuation model. The determination of fair value is affected by the Company's stock price, expected stock price volatility, expected term of the award and the risk-free rate of interest.  The weighted average fair value of the stock options granted in 2012 was $1.31. The following assumptions were used to determine the fair value of the stock options granted to employees in 2012:
	Expected volatility		43%
	Risk-free rate		0.35%
	Expected term (in years)		6-Feb
	Other information pertaining to stock option activity during the years ended January 2, 2015, December 27, 2013 and December 28, 2012 was as follows (in thousands):
			Year Ended
			2-Jan-15			27-Dec-13			28-Dec-12
	Total intrinsic value of stock options exercised		$	36		$	163		$	177
	The following table summarizes information about the Company’s stock options outstanding:
			Options Outstanding							Options Exercisable
	Range of Exercise Prices		Number		Weighted Average			Weighted Average		Number			Weighted Average
			Outstanding		Remaining			Exercise Price		Exercisable			Exercise Price
					Contractual Life
					(Years)
	$0.00 - $4.00		297,667		6.79		$	4.00		17,667		$	3.96
	On February 8, 2012, the Compensation Committee approved the fiscal year 2012 through 2015 equity compensation target for the Chief Executive Officer and Chief Operating Officer. Under this target, a single performance-based option grant was made to the Company’s Chief Executive Officer and the Chief Operating Officer of 1,912,500 options and 1,004,063 options, respectively, totaling 2,916,563 options, each with an exercise price of $4.00 and a fair value of $1.31.  One-half of the options vest upon the achievement of at least 50% growth of pro forma earnings per share and the remaining half vest upon the achievement of at least 50% pro forma EBITDA growth. Each metric can be achieved at any time during the six-year term of the award based on a trailing twelve month period measured quarterly. The grants will expire if neither target is achieved during the six-year term. The base year for the performance calculation is fiscal 2011 for both pro forma earnings per share and pro forma EBITDA performance targets.
	In March of 2013, the performance-based stock option grants were surrendered by the Company’s Chief Executive Officer and Chief Operating Officer and replaced with SARs, totaling 2,916,563, equal in number to the number of options granted to each of them in 2012. The terms and conditions and the specific performance targets that must be achieved in order for the SARs to vest are the same as those of the surrendered options, with the exception that the SARs will be settled in cash, stock or any combination thereof, at the Company’s discretion.
	In addition, 470,000 vested stock options were surrendered and replaced with SARs with an extended life during 2013.  Subsequently, in 2014, the extended life of the SARS was rescinded and the SARS expired unexercised.
	SAR activity for the year ended January 2, 2015 was as follows:
			Number of SARs			Weighted Average			Weighted Average
						Exercise Price			Fair Value
	Outstanding as of December 27, 2013			3,386,563		$	4.31		$	0.99
	Expired			-470,000			6.25			1.23
	Outstanding as of January 2, 2015			2,916,563		$	4.00		$	0.96
	Exercisable at January 2, 2015			—		$	—		$	—
	The following assumptions were used to determine the fair value of the SARs granted to employees in 2013:
	Expected volatility		43%
	Risk-free rate		0.35%
	Expected term (in years)		2
	As of January 2, 2015,  100% of total outstanding options and SARs were performance-based. The Company has recorded $0.5 million of compensation expense in 2014 and 2013 and $0.6 million in 2012, related to these options and SARs in accordance with ASC 718, "Stock Compensation".
	Restricted Stock Units
	Under the stock plans, participants may be granted restricted stock units, each of which represents a conditional right to receive a common share in the future. The restricted stock units granted under this plan generally vest over one of the following vesting schedules: (1) a four-year period, with 50% vesting on the second anniversary and 25% of the shares vesting on the third and fourth anniversaries of the grant date, (2) a four-year period, with 25% vesting on the first, second,  third and fourth anniversary, or (3) a three-year period with 33% vesting on the first, second and third anniversary. Upon vesting, the restricted stock units will convert into an equivalent number of shares of common stock. The amount of expense relating to the restricted stock units is based on the closing market price of the Company’s common stock on the date of grant and is amortized on a straight-line basis over the applicable requisite service period. Restricted stock unit activity for the year ended January 2, 2015, was as follows:
			Number of			Weighted Average
			Restricted			Grant-Date
			Stock Units			Fair Value
	Nonvested balance as of December 27, 2013			2,910,304		$	4.17
	Granted			914,233			6.00
	Vested			-1,321,949			3.95
	Forfeited			-187,375			6.51
Nonvested balance as of January 2, 2015			2,315,213		$	5.41
The Company recorded restricted stock units based compensation expense of $5.0 million, $4.8 million and $4.2 million in 2014, 2013 and 2012, respectively, which is included in stock compensation expense, based on the vesting provisions of the restricted stock units and the fair market value of the stock on the grant date. As of January 2, 2015, there was $6.5 million of total restricted stock units compensation related to the nonvested awards not yet recognized, which is expected to be recognized over a weighted average period of 1.94 years.
Common Stock Subject to Vesting Requirements
Shares of common stock subject to vesting requirements were issued to employees of acquired companies. These shares vest over a period of up to five years. Compensation was based on the market value of the Company’s common stock at the time of grant and is recognized on a straight-line basis. The activity for common stock subject to vesting requirements for the year ended January 2, 2015 was as follows:
		Number of Shares of			Weighted Average
		Common Stock			Grant-Date
		Subject to Vesting			Fair Value
		Requirements
Nonvested balance as of December 27, 2013			177,647		$	3.31
Granted			164,474			6.04
Vested			-77,647			2.73
Nonvested balance as of January 2, 2015			264,474		$	7.54
The Company recorded compensation expense of $0.9 million, $0.8 million and $0.7 million, during the years ended January 2, 2015, December 27, 2013 and December 28, 2012, respectively, related to common stock subject to vesting requirements. As of January 2, 2015, there was $1.0 million of total stock based compensation related to granted common stock subject to vesting requirements not yet recognized, which is expected to be recognized over a weighted average period of 3.0 years.
Common stock subject to vesting requirements of $4.6 million will be issued in 2015 in relation to the equity portion of the Technolab earn-out.  These shares will be subject to a four year vesting period.  Compensation expense of $0.7 million was recorded in 2014 for these shares.

Shareholders_Equity

Shareholders' Equity	12 Months Ended
	Jan. 02, 2015
Shareholders' Equity [Abstract]
Shareholders' Equity	12. Shareholders’ Equity
	Tender Offer
	On August 28, 2013, the Company announced a tender offer to purchase up to $35.75 million in value of shares of its common stock, $0.001 par value per share, at a price not greater than $6.50 nor less than $5.75 per share, to the seller in cash, less any applicable withholding taxes and without interest (the "Offer"). On September 26, 2013, the Company amended the Offer (the "Amended Offer") to increase the price range at which it would purchase its common stock to a range of not greater than $7.00 nor less than $6.50 per share and to decrease the dollar amount of the Offer to $25.0 million. The Amended Offer was completed on October 15, 2013, with the Company purchasing approximately 1.0 million shares of its common stock at a purchase price of $7.00 per share, for an aggregate cost of approximately $6.9 million, excluding fees and expenses related to the Amended Offer. The 1.0 million shares represented approximately 3% of the Company's issued and outstanding shares of common stock at that time. The Company financed the Amended Offer from borrowings under the Amended Term Loan under its existing Credit Facility. See Note 9 for further detail.
	On March 21, 2012, the Company completed a tender offer to purchase 11.0 million shares of its common stock at a purchase price of $5.00 per share, for an aggregate cost of approximately $55.0 million, excluding fees and expenses relating to the tender offer. The 11.0 million shares accepted for purchase represented approximately 27% of the Company’s issued and outstanding shares of common stock at that time.
	Employee Stock Purchase Plan
	Effective July 1, 1998, the Company adopted an Employee Stock Purchase Plan to provide substantially all employees who have completed three months of service as of the beginning of an offering period an opportunity to purchase shares of its common stock through payroll deductions. Purchases on any one grant are limited to 10% of eligible compensation. Shares of the Company’s common stock may be purchased by employees at six-month intervals at 95% of the fair market value on the last trading day of each six-month period. The aggregate fair market value, determined as of the first trading date of the offering period, of shares purchased by an employee may not exceed $25,000 annually. The Employee Stock Purchase Plan expires on July 1, 2018. A total of 4,275,000 shares of common stock are available for purchase under the plan with a limit of 400,000 shares of common stock to be issued per offering period. For plan years 2014, 2013 and 2012, 94,333 shares, 113,905 shares and 117,757 shares, respectively, were issued.
	Treasury Stock
	On July 30, 2002, the Company announced that its Board of Directors approved the repurchase of up to $5.0 million of the Company’s common stock. Since the inception of the repurchase plan, the Board of Directors approved the repurchase of an additional $90.0 million of the Company’s common stock, thereby increasing the total program size to $95.0 million as of January 2, 2015.  As of January 2, 2015, the Company had effected cumulative purchases under the plan of $91.3 million, leaving $3.7 million available for future purchases.  Under the repurchase plan, the Company may buy back shares of its outstanding stock from time to time either on the open market or through privately negotiated transactions, subject to market conditions and trading restrictions, excluding the above mentioned tender offers.
	During 2014 and 2013, the Company repurchased 1.8 million and 1.0 million shares of its common stock, respectively, at an average price per share of $6.07 and $5.86, respectively, for a total cost of $11.0 million and $6.0 million, respectively. As of January 2, 2015 and December 27, 2013, the Company had repurchased 24.0 million and 22.2 million shares of its common stock, respectively, at an average price of $3.81 and $3.62 per share, respectively. As of January 2, 2015, the Company had $3.7 million available under the Company’s buyback program. The Company holds repurchased shares of its common stock as treasury stock and accounts for treasury stock under the cost method.
	Dividends
	On December 7, 2012, the Company’s Board of Directors adopted a dividend policy pursuant to which the Company intended to pay annual cash dividends on its common stock. In December 2014, the Board of Directors declared and paid annual cash dividends of $0.12 per common share, or a total of $3.5 million, to holders of the Company’s common stock. In December 2013 and 2012, the Board of Directors declared and paid annual cash dividends of $0.10 per common share, or a total of $3.1 million, to holders of the Company’s common stock. These dividends were paid from U.S. domestic sources and are accounted for as an increase to retained deficit.
	Subsequent to January 2, 2015, the Company’s Board of Directors announced that its annual dividend would increase $0.14 per common share and be paid semi-annually.
	Shareholder Rights Plan
	On February 13, 2004, the Company’s Board of Directors adopted a Shareholder Rights Plan. Under the Plan, a dividend of one preferred share purchase right (a “Right”) was declared for each share of common stock of the Company that was outstanding on February 26, 2004.
	The Rights had certain anti-takeover effects, in that they would have caused substantial dilution to a person or group that attempted to acquire a significant interest in the Company on terms not approved by the Board of Directors. The Rights expired on February 13, 2014.

Benefit_Plan

Benefit Plan	12 Months Ended
	Jan. 02, 2015
Benefit Plan [Abstract]
Benefit Plan	13. Benefit Plan
	The Company maintains a 401(k) plan covering all eligible employees. Subject to certain dollar limits, eligible employees may contribute up to 15% of their pre-tax annual compensation to the plan. The Company may make discretionary contributions on an annual basis. During fiscal years 2014, 2013 and 2012, the Company made matching contributions of 25% of employee contributions up to 4% of their gross salaries. The Company’s matching contributions were $0.3 million for each of the fiscal years ended January 2, 2015, December 27, 2013 and December 28, 2012.

Transactions_with_Related_Part

Transactions with Related Parties	12 Months Ended
	Jan. 02, 2015
Transactions With Related Parties [Abstract]
Transactions with Related Parties	14. Transactions with Related Parties
	There were no related party transactions in 2014, 2013 or 2012.

Litigation

Litigation	12 Months Ended
	Jan. 02, 2015
Litigation [Abstract]
Litigation	15. Litigation
	The Company is involved in legal proceedings, claims, and litigation arising in the ordinary course of business not specifically discussed herein. In the opinion of management, the final disposition of such matters will not have a material adverse effect on the Company’s consolidated financial position, cash flows or results of operations.

Acquisition

Acquisition	12 Months Ended
	Jan. 02, 2015
Acquisitions And Investing Activities [Abstract]
Acquisition	16. Acquisition
	During the quarter ended March 28, 2014, the Company acquired the U.S., Canada and Uruguay operations of Technolab International Corporation ("Technolab"), an EPM AMS business.
	Management's initial purchase consideration was $3.0 million in cash and $1.0 million in shares of the Company’s common stock, which are subject to vesting. In addition, the Sellers had the ability to earn an additional $8.0 million in contingent consideration in cash and stock subject to an earn-out based on actual results achieved.  The cash was not subject to vesting, however the stock was subject to service vesting.
	During the fourth quarter of 2014, measurement period adjustments related to the Technolab acquisition were finalized. Also, during the fourth quarter of 2014,  $9.0 million of cash and equity which were previously accounted for as purchase consideration will now be reflected as compensation expense over the respective vesting period,  $4.3 million of which was reflected as compensation expense in 2014. This re-characterization of purchase consideration to compensation expense resulted in a bargain purchase gain of $3.0 million on the acquisition, a deferred tax liability of $1.9 million and intangible assets with definite lives of $7.7 million which will be amortized over periods ranging from 2 years to 5 years. The adjustments mentioned above are reflected in Note 18 for each of the 2014 fiscal quarters.
	The following table presents the purchase price allocation of the assets acquired and liabilities assumed, based on the fair values (in thousands):
			Purchase Price
			Allocation
	Total consideration	$	3,000
	Allocation of purchase price
	Cash		522
	Accounts receivable		1,346
	Total current assets acquired		1,868
	Intangible assets		7,749
	Total assets acquired		9,617
	Accrued expenses and other liabilities		1,711
	Deferred tax liability		1,891
	Total liabilities acquired		3,602
	Net assets identifiable assets	$	6,015
	Bargain purchase gain on acquisition	$	3,015
	The application of the acquisition method of accounting resulted in a bargain purchase gain of approximately $3.0 million.
	Pro forma results of Technolab have not been presented as the acquisition closed at the beginning of 2014 and therefore, the full year results of Technolab are included in the Company’s consolidated financial results.  Technolab contributed total revenue of $10.3 million and contribution before depreciation, amortization, interest, corporate overhead allocation and taxes of $3.3 million.
	The acquired intangible assets with definite lives are amortized over periods ranging from 2 to 5 years. The following table presents the intangible assets acquired from Technolab as of January 2, 2015:
	Category			Amount                        (in thousands)	Useful Life           (in years)
	Customer Base		$	4,727	5
	Trade Name			115	2
	Customer Backlog			2,031	2
	Non-Compete			876	5
			$	7,749

Geographic_And_Service_Group_I

Geographic And Service Group Information	12 Months Ended
	Jan. 02, 2015
Geographic And Service Group Information [Abstract]
Geographic And Service Group Information	17. Geographic and Service Group Information
	Revenue, which is primarily based on the country of the Company’s contracting entity is attributed to geographic areas as follows (in thousands):
		Year Ended
		January 2,		December 27,		December 28,
		2015		2013		2012
	Revenue:
	North America	$	190,050	$	179,539	$	173,650
	International (primarily European countries)		46,687		44,291		49,086
	Total revenue	$	236,737	$	223,830	$	222,736
	Long-lived assets are attributed to geographic areas as follows (in thousands):
			January 2,	December 27,		December 28,
			2015	2013		2012
	Long-Lived Assets:
	North America	$	80,152	$	74,095	$	74,407
	International (primarily European countries)		15,578		16,246		16,270
	Total long-lived assets	$	95,730	$	90,341	$	90,677
	As of January 2, 2015, December 27, 2013 and December 28, 2012, foreign assets included $15.0 million, $15.8 million and $15.6 million, respectively, of goodwill related to the REL and Archstone acquisitions.
	In the following table, The Hackett Group service group encompasses Benchmarking, Business Transformation and Executive Advisory groups, and includes EPM Technologies. The ERP Solutions group encompasses SAP ERP (in thousands):
		Year Ended
		January 2,		December 27,		December 28,
		2015		2013		2012
	The Hackett Group	$	196,145	$	184,112	$	187,787
	ERP Solutions		40,592		39,718		34,949
	Total revenue	$	236,737	$	223,830	$	222,736

Quarterly_Financial_Informatio

Quarterly Financial Information	12 Months Ended
	Jan. 02, 2015
Quarterly Financial Information [Abstract]
Quarterly Financial Information
	18. Quarterly Financial Information (unaudited)
	The following table presents unaudited supplemental quarterly financial information for the years ended January 2, 2015 and December 27, 2013 (in thousands, except per share data):
			Quarter Ended (1)
			March 28,		June 27,		September 26,		January 2,
			2014		2014		2014		2015
	Total revenue		$	54,905	$	61,052	$	60,437	$	60,343
	Operating income (loss) (2)(3)		$	-1,680	$	5,026	$	5,059	$	4,181
	Income (loss) from continuing operations (2)(3)		$	-2,046	$	3,475	$	3,591	$	4,691
	Income (loss) from discontinued operations (4)		$	—	$	—	$	—	$	—
	Net income (loss) (2)(3)		$	-2,046	$	3,475	$	3,591	$	4,691
	Basic net income (loss) per common share:
	Income (loss) per common share from continuing operations		$	-0.07	$	0.12	$	0.13	$	0.17
	Income (loss) per common share from discontinued operations(4)			—		—		—		—
	Net income (loss) per common share		$	-0.07	$	0.12	$	0.13	$	0.17
	Diluted net income (loss) per common share:
	Income (loss) per common share from continuing operations		$	-0.07	$	0.12	$	0.12	$	0.16
	Income (loss) per common share from discontinued operations(4)			—		—		—		—
	Net income (loss) per common share		$	-0.07	$	0.12	$	0.12	$	0.16
			Quarter Ended
			March 29,		June 28,		September 27,		December 27,
			2013		2013		2013		2013
	Total revenue		$	54,349	$	58,961	$	57,916	$	52,604
	Operating income		$	3,529	$	5,085	$	4,717	$	2,396
	Income from continuing operations		$	2,029	$	2,930	$	2,699	$	1,206
	Income (loss) from discontinued operations		$	-71	$	—	$	-64	$	—
	Net income (5)		$	1,958	$	2,930	$	2,635	$	1,206
	Basic net income per common share:
	Income per common share from continuing operations		$	0.06	$	0.10	$	0.09	$	0.04
	Income (loss) per common share from discontinued operations			—		—		—		—
	Net income per common share		$	0.06	$	0.10	$	0.09	$	0.04
	Diluted net income per common share:
	Income per common share from continuing operations		$	0.07	$	0.09	$	0.08	$	0.04
	Income (loss) per common share from discontinued operations			-0.01		—		—		—
	Net income per common share		$	0.06	$	0.09	$	0.08	$	0.04
		-1		The fiscal 2014 quarters presented above, are as previously reported. See table below which restates the 2014 Statement of Operations by quarter for the impact of the Technolab EPM AMS acquisition-related purchase consideration reflected as compensation expense, as well as other acquisition-related adjustments recorded in the fourth quarter of 2014, as mentioned in Note 16.
		-2		The fiscal quarter ended March 28, 2014, includes restructuring costs of $3.6 million.
		-3		The fiscal quarter ended January 2, 2015, includes a bargain purchase gain from the acquisition of the Technolab EPM AMS of $3.0 million.
		-4		There were no discontinued operations in fiscal year 2014.
		-5		The quarter ended December 28, 2012 included the benefit of the release of $6.7 million of deferred income tax asset valuation allowance. Quarterly basic and diluted net income per common share were computed independently for each quarter and do not necessarily total to the year to date basic and diluted net income per common share.
	The following table presents the restated 2014 Statement of Operations by quarter for the impact of the acquisition-related purchase consideration reflected as compensation expense, as well as other acquisition-related adjustments recorded in the fourth quarter of 2014 as discussed in Note 16 (in thousands, except per share amounts):
				Quarter Ended
				28-Mar-14		27-Jun-14		27-Sep-14		2-Jan-15
			(unaudited)
	Revenue:
	Revenue before reimbursements		$	49,418	$	55,000	$	54,550	$	54,551
	Reimbursements			5,487		6,052		5,887		5,792
	Total revenue			54,905		61,052		60,437		60,343
	Costs and expenses:
	Cost of service:
	Personnel costs before reimbursable expenses (1)
	(includes $686,  $999,  $842 and $1,029 of stock
	compensation expense in Q1, Q2, Q3 and Q4 2014)			34,184		35,427		35,142		34,205
	Reimbursable expenses			5,487		6,052		5,887		5,792
	Total cost of service			39,671		41,479		41,029		39,997
	Selling, general and administrative costs  (2)
	(includes $653,  $691,  $814 and $656 of stock
	compensation expense in Q1, Q2, Q3 and Q4 2014)			14,235		15,607		15,422		16,122
	Bargain purchase gain from acquisition (1) (2)			-3,015		-		-		-
	Restructuring costs			3,604		-		-		-
	Total costs and operating expenses			54,495		57,086		56,451		56,119
	Income from operations			410		3,966		3,986		4,224
	Other income (expense):
	Interest income			1		1		2		2
Interest expense			-124		-166		-173		-163
Income from continuing operations before income taxes			287		3,801		3,815		4,063
Income tax (benefit) expense (3)			-118		973		879		521
Net income		$	405	$	2,828	$	2,936	$	3,542
Basic net income per common share		$	0.01	$	0.10	$	0.10	$	0.13
Weighted average common shares outstanding			29,120		28,939		28,558		28,257
Diluted net income per common share		$	0.01	$	0.10	$	0.10	$	0.12
Diluted			29,869		29,984		29,800		29,871
(1) The cost of service adjustments reflect the re-charaterization of cash and equity which were previously accounted for as purchase consideration
and are now reflected as compensation expense.  These adjustments contributed to a bargain purchase gain from the Technolab acquisition.
(2)  The selling, general and administrative costs reflect adjustmens related to the acquired intangible assets and amortization expense of those assets.
These adjustments contributed to a bargain purchase from the Technolab acquisition.
(3)  The income tax expense (benefit) reflect adjustments related to the Technolab acquisition which were finalized and re-characterized in the fourth
quarter of 2014.

Schedule_II_Valuation_and_Qual

Schedule II - Valuation and Qualifying Accounts and Reserves	12 Months Ended
	Jan. 02, 2015
Schedule II - Valuation and Qualifying Accounts and Reserves [Abstract]
Schedule II - Valuation And Qualifying Accounts And Reserves	THE HACKETT GROUP, INC.
	SCHEDULE II – VALUATION AND QUALIFYING ACCOUNTS AND RESERVES
	YEARS ENDED JANUARY 2, 2015, DECEMBER 27, 2013, AND DECEMBER 28, 2012
	(in thousands)
		Balance at
		Beginning		Charge to				Balance at
	Allowance for Doubtful Accounts	of Year		Expense		Write-offs		End of Year
	Year Ended January 2, 2015	$	1,674		785		-1,129	$	1,330
	Year Ended December 27, 2013	$	1,251		742		-319	$	1,674
	Year Ended December 28, 2012	$	799		657		-205	$	1,251

Basis_of_Presentation_and_Gene1

Basis of Presentation and General Information (Policies)	12 Months Ended
	Jan. 02, 2015
Basis Of Presentation And General Information [Abstract]
Nature of Business	Nature of Business
	The Hackett Group, Inc. (“Hackett,” or the “Company”) is a global strategic advisory firm and a leader in best practice advisory, benchmarking, and transformation consulting services, including shared services, offshoring and outsourcing advice.
Basis of Presentation and Consolidation	Basis of Presentation and Consolidation
	The accompanying consolidated financial statements include the Company’s accounts and those of its wholly-owned subsidiaries which the Company is required to consolidate. The Company consolidates the assets, liabilities, and results of operations of its entities.
Fiscal Year	Fiscal Year
	The Company’s fiscal year generally consists of a 52-week period and periodically consists of a 53-week period as each fiscal year ends on the Friday closest to December 31. Fiscal years 2014, 2013 and 2012 ended on January 2, 2015, December 27, 2013 and December, 28, 2012, respectively. References to a year included in the consolidated financial statements refer to a fiscal year rather than a calendar year.
Cash and Cash Equivalents and Restricted Cash	Cash and Cash Equivalents and Restricted Cash
	The Company considers all short-term investments with maturities of three months or less to be cash equivalents. Due to the short maturity period of cash equivalents, the carrying amount of these instruments approximates fair market value. The Company places its temporary cash investments with high credit quality financial institutions. At times, such investments may be in excess of the F.D.I.C. insurance limits. The Company has not experienced any loss to date on these investments.
	Restricted cash in 2013 and 2012 related to future employee compensation agreements. As of January 2, 2015, the Company did not have any restricted cash balances.
Allowance for Doubtful Accounts	Allowance for Doubtful Accounts
	The Company maintains allowances for doubtful accounts for estimated losses resulting from its clients not making required payments. Management makes estimates of the collectability of accounts receivable. Management also critically reviews accounts receivable and analyzes historical bad debts, past-due accounts, client credit-worthiness and current economic trends when evaluating the adequacy of the allowance for doubtful accounts. If the financial condition of the Company’s clients were to deteriorate, resulting in their inability to make payments, additional allowances may be required.
Dividends	Dividends
	In December 2012, the Company’s Board of Directors approved the initiation of an annual cash dividend program in the amount of $0.10 per share. In 2014, the Company’s Board of Directors approved an increase in the dividend payment from $0.10 per share to $0.12 per share. Subsequent to fiscal 2014, the Company’s Board of Directors approved a semi-annual dividend program and an increase in the dividend to $0.14 per share. The Company’s dividend policy is reviewed periodically by the Board of Directors. The amount and timing of all dividend payments is subject to the discretion of the Board of Directors and will depend upon business conditions, contractual obligations, legal restrictions, results of operations, financial conditions and other factors.
Property and Equipment, Net	Property and Equipment, Net
	Property and equipment are recorded at cost. Depreciation is calculated to amortize the depreciable assets over their useful lives using the straight-line method and commences when the asset is placed in service. The range of estimated useful lives is three to seven years. Leasehold improvements are amortized on a straight-line basis over the term of the lease or the estimated useful life of the improvement, whichever is shorter. Expenditures for repairs and maintenance are charged to expense as incurred. Expenditures for betterments and major improvements are capitalized. The carrying amount of assets sold or retired and related accumulated depreciation are removed from the balance sheet in the year of disposal and any resulting gains or losses are included in the consolidated statements of operations.
	The Company capitalizes the costs of internal-use software, which generally includes hardware, software, and payroll-related costs for employees who are directly associated with, and who devote time, to the development of internal-use computer software
Long-Lived Assets (excluding Goodwill and Other Intangible Assets)	Long-Lived Assets (excluding Goodwill and Other Intangible Assets)
	Long-lived assets are reviewed for impairment whenever events or circumstances indicate that the carrying amount of an asset may not be fully recoverable. If an evaluation is required, the estimated future undiscounted cash flows associated with the asset are compared to the asset’s carrying amount to determine if there has been an impairment. The amount of an impairment is calculated as the difference between the fair value of the asset and its carrying value. Estimates of future undiscounted cash flows are based on management’s view of growth rates for the related business, anticipated future economic conditions and estimates of residual values.
Business Combinations	Business Combinations
	The Company accounts for business combinations using the acquisition method of accounting. This method requires the use of fair values in determining the carrying values of the purchased assets and assumed liabilities, which are recorded at fair value at acquisition date, and identifiable intangible assets are recorded at fair value. Costs directly related to the business combinations are recorded as expenses as they are incurred. Fair values are subject to refinement for up to one year after the closing date of an acquisition as information relative to closing date fair values become available. A bargain purchase gain on an acquisition occurs when the net of the estimated fair value of the assets acquired and liabilities assumed exceeds the consideration paid.
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets
	Goodwill and intangible assets deemed to have indefinite lives are not amortized, but rather are tested for impairment on an annual basis, or more frequently if events or changes in circumstances indicate potential impairment. Finite-lived intangible assets are amortized over their useful lives. The excess cost of the acquisition over the fair value of the net assets acquired is recorded as goodwill.
	Goodwill is tested at least annually for impairment at the reporting unit level utilizing the market approach. The reporting units consist of The Hackett Group (including Benchmarking, Business Transformation, Business Transformation Enterprise Performance Management (“EPM”), Strategy and Operations and Executive Advisory Programs) and Hackett Technology Solutions (including SAP ERP and SAP Application Maintenance and Support (“AMS”), Oracle EPM and EPM AMS). In assessing the recoverability of goodwill and intangible assets, the Company utilizes the market approach and makes estimates based on assumptions regarding various factors to determine if impairment tests are met. The market approach utilizes valuation multiples based on operating data from publicly traded companies within the same industry. Multiples derived from guideline companies provide an indication of how much a knowledgeable investor in the marketplace would be willing to pay for a company. These multiples are then applied to the Company’s reporting units to arrive at an indication of value. This approach contains management’s judgment, using appropriate and customary assumptions available at the time.
	During the year ended December 27, 2013, the Company exited its Oracle ERP implementation business practice and as a result allocated $0.2 million of related goodwill to this transaction. The Oracle ERP implementation business is separate and distinct from the Company's Oracle EPM business and was included in the Hackett Technology Solutions reporting unit.
	The Company performed its annual impairment test of goodwill in the fourth quarter of fiscal years 2014 and 2013 and determined that goodwill was not impaired. The carrying amount and activity of goodwill attributable to The Hackett Group and Hackett Technology Solutions was as follows (in thousands):
				Hackett
		The Hackett		Technology
		Group		Solutions		Total
	Balance at December 28, 2012	$	44,887	$	31,333	$	76,220
	Allocation of goodwill related to discontinued operations		—		-199		-199
	Foreign currency translation adjustment		262		—		262
	Balance at December 27, 2013		45,149		31,134		76,283
	Foreign currency translation adjustment		-854		—		-854
	Balance at January 2, 2015	$	44,295	$	31,134	$	75,429
	Other intangible assets are tested for potential impairment whenever events or changes in circumstances suggest that the carrying value of an asset may not be fully recoverable. If an evaluation is required, the estimated future undiscounted cash flows associated with the asset are compared to the asset’s carrying amount to determine if there has been an impairment. The amount of an impairment is calculated as the difference between the fair value of the asset and its carrying value. Estimates of future undiscounted cash flows are based on management’s view of growth rates for the related business, anticipated future economic conditions and estimates of residual values. Other intangible assets arise from business combinations and consist of customer relationships, customer backlog and trademarks that are amortized on a straight-line or accelerated basis over periods of up to five years.
	Other intangible assets, included in other assets in the accompanying consolidated balance sheets, consist of the following (in thousands):
				January 2,		December 27,
				2015		2013
	Gross carrying amount			$	22,448	$	14,699
	Accumulated amortization				-16,472		-14,260
	Foreign currency translation adjustment				33		6
				$	6,009	$	445
	All of the Company’s intangible assets are expected to be fully amortized by the end of 2018.  The estimated future amortization expense of intangible assets as of January 2, 2015 is as follows: $2.2 million in 2015,  $1.2 million in 2016,  $1.3 million in 2017 and $1.3 million in 2018. See Note 16 for further discussion.
Revenue Recognition	Revenue Recognition
	Revenue is principally derived from fees for services generated on a project-by-project basis. Revenue for services rendered is recognized on a time and materials basis or on a fixed-fee or capped-fee basis.
	Revenue for time and materials contracts is recognized based on the number of hours worked by our consultants at an agreed upon rate per hour and is recognized in the period in which services are performed.
	Revenue related to fixed-fee or capped-fee contracts is recognized on the proportional performance method of accounting based on the ratio of labor hours incurred to estimated total labor hours. This percentage is multiplied by the contracted dollar amount of the project to determine the amount of revenue to recognize in an accounting period. The contracted dollar amount used in this calculation excludes the amount the client pays for reimbursable expenses. There are situations where the number of hours to complete projects may exceed the original estimate. These increases can be as a result of an increase in project scope, unforeseen events that arise, or the inability of the client or the delivery team to fulfill their responsibilities. On an on-going basis, project delivery, Office of Risk Management and finance personnel review hours incurred and estimated total labor hours to complete projects. Any revisions in these estimates are reflected in the period in which they become known. If the Company estimates indicate that a contract loss will occur, a loss provision will be recorded in the period in which the loss first becomes probable and reasonably estimable. Contract losses are determined to be the amount by which the estimated direct costs of the contract exceed the estimated total revenue that will be generated by the contract and are included in total cost of service.
	Revenue from advisory services is recognized ratably over the life of the agreements.
	Additionally, the Company earns revenue from the resale of software licenses and maintenance contracts. Revenue for the resale software and software licenses is recognized upon contract execution and customer receipt of software. Revenue from maintenance contracts is recognized ratably over the life of the agreements.
	Revenue for contracts with multiple elements is allocated based on the respective selling price of the individual elements and is recognized in accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 605-25, Multiple-Deliverable Revenue Arrangements, a consensus of the FASB Emerging Issues Task Force.
	Unbilled revenue represents revenue for services performed that have not been invoiced. If the Company does not accurately estimate the scope of the work to be performed, or does not manage its projects properly within the planned periods of time, or does not meet clients’ expectations under the contracts, then future consulting margins may be negatively affected or losses on existing contracts may need to be recognized. Any such reductions in margins or contract losses could be material to the Company’s results of operations.
	Sales tax collected from customers and remitted to the applicable taxing authorities is accounted for on a net basis, with no impact on revenue.
	Revenue before reimbursements excludes reimbursable expenses charged to clients. Reimbursements, which include travel and out-of-pocket expenses, are included in revenue, and an equivalent amount of reimbursable expenses is included in cost of service.
	The agreements entered into in connection with a project, whether time and materials based or fixed-fee or capped-fee based, typically allow clients to terminate early due to breach or for convenience with 30 days’ notice. In the event of termination, the client is contractually required to pay for all time, materials and expenses incurred by the Company through the effective date of the termination. In addition, from time to time the Company enters into agreements with its clients that limit its right to enter into business relationships with specific competitors of that client for a specific time period. These provisions typically prohibit the Company from performing a defined range of services which it might otherwise be willing to perform for potential clients. These provisions are generally limited to six to twelve months and usually apply only to specific employees or the specific project team.
Stock Based Compensation	Stock Based Compensation
	The Company recognizes compensation expense for awards of equity instruments to employees based on the grant-date fair value of those awards, with limited exceptions, over the requisite service period.
Restructuring Reserves	Restructuring Reserves
	Restructuring reserves reflect judgments and estimates of the Company’s ultimate costs of severance, closure and consolidation of facilities and settlement of contractual obligations under its operating leases, including sublease rental rates, absorption period to sublease space and other related costs. The Company reassesses the reserve requirements to complete each individual plan under the restructuring programs at the end of each reporting period. If these estimates change in the future or actual results differ from the Company’s estimates, additional charges may be required.
Income Taxes	Income Taxes
	Income taxes are accounted for in accordance with FASB ASC Topic 740, Income Taxes (“ASC 740”). Under ASC 740, deferred tax assets and liabilities are determined based on differences between the financial reporting carrying values and tax bases of assets and liabilities, and are measured by using enacted tax rates expected to apply to taxable income in the years in which those differences are expected to reverse. Deferred income taxes also reflect the impact of certain state operating loss and tax credit carryforwards. A valuation allowance is provided if the Company believes it is more likely than not that all or some portion of the deferred tax asset will not be realized. An increase or decrease in the valuation allowance, if any, that results from a change in circumstances, and which causes a change in the Company’s judgment about the realizability of the related deferred tax asset, is included in the tax provision.
	In accordance with FASB ASC Topic 740-10, Accounting for Uncertainty in Income Taxes (“ASC 740-10”), the Company adopted a more-likely-than-not threshold for financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. This interpretation also provides guidance on de-recognition of income tax assets and liabilities, classification of current and deferred income tax assets and liabilities, accounting for interest and penalties associated with tax positions, accounting for income taxes in interim periods and income tax disclosures. The Company reports penalties and tax-related interest expense as a component of income tax expense.
Net Income per Common Share	Net Income per Common Share
	Basic net income per common share is computed by dividing net income by the weighted average number of common shares outstanding during the period. With regard to common stock subject to vesting requirements and restricted stock units issued to employees, the calculation includes only the vested portion of such stock.
	The potential issuance of common shares upon the exercise, conversion or vesting of unvested restricted stock units, common stock subject to vesting, stock options and stock appreciation right units ("SARs"), as calculated under the treasury stock method, may be dilutive. Diluted net income per share is computed by dividing the net income by the weighted average number of common shares outstanding, and will increase by the assumed conversion of other potentially dilutive securities during the period.
	The following table reconciles basic and diluted weighted average shares:
		Year Ended
		January 2,		December 27,		December 28,
		2015		2013		2012
	Basic weighted average common shares outstanding		28,718,263		30,283,298		31,703,544
	Effect of dilutive securities:
	Unvested restricted stock units and common stock subject
	to vesting requirements issued to employees		1,152,974		1,809,565		1,765,351
	Common stock issuable upon the exercise of stock options		9,765		22,802		41,817
	Dilutive weighted average common shares outstanding		29,881,002		32,115,665		33,510,712
	There were 0.3 million, 0.8 million, and 3.9 million shares of awards granted excluded from the above reconciliation for the years ended 2014, 2013, and 2012, respectively, as their inclusion would have had an anti-dilutive effect on diluted net income per share. The decrease in 2013 of anti-dilutive shares is due to the issuance of performance-based options granted during the quarter ended March 30, 2012, which were surrendered and replaced with SARs in 2013. See Note 11 for further detail.
Fair Value of Financial Instruments	Fair Value of Financial Instruments
	The Company’s financial instruments consist of cash and cash equivalents, restricted cash, accounts receivable and unbilled revenue, accounts payable, accrued expenses and other liabilities and debt. As of January 2, 2015 and December 27, 2013, the carrying amount of each financial instrument, with the exception of debt, approximated the instrument’s fair value due to the short-term nature and maturity of these instruments.
	The Company uses significant other observable market data or assumptions (Level 2 inputs as defined in accounting guidance) that it believes market participants would use in pricing debt. The fair value of the debt approximated its carrying amount using Level 2 inputs, due to the short-term variable interest rates based on market rates utilizing the market approach.
Concentration of Credit Risk	Concentration of Credit Risk
	The Company provides services primarily to Global 2000 companies and other sophisticated buyers of business consulting and information technology services. The Company performs ongoing credit evaluations of its major customers and maintains reserves for potential credit losses. In 2014,  2013 and 2012 no customer accounted for more than 5% of total revenue.
Managementbs Estimates	Management’s Estimates
	The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates.
Other Comprehensive Income	Other Comprehensive Income
	The Company reports its comprehensive income in accordance with FASB ASC Topic 220, Comprehensive Income, which establishes standards for reporting and presenting comprehensive income and its components in a full set of financial statements. Other comprehensive income consists of net income and cumulative currency translation adjustments.
Translation of Non-U.S. Currency Amounts	Translation of Non-U.S. Currency Amounts
	The assets and liabilities held by the Company’s foreign entities that have a functional currency other than the U.S. Dollar are translated into U.S. Dollars at exchange rates in effect at the end of each reporting period. Foreign entity revenue and expenses are translated into U.S. Dollars at the average rates that prevailed during the period. The resulting net translation gains and losses are reported as foreign currency translation adjustments in shareholders’ equity as a component of accumulated other comprehensive income. Gains and losses from foreign currency transactions are included in net income.
Segment Reporting	Segment Reporting
	The Company engages in business activities in one operating segment, which provides business and technology consulting services.
Recent Accounting Pronouncements	Recent Accounting Pronouncements
	In May 2014, the FASB issued guidance on revenue recognition, which provides for a single, principles-based model for revenue recognition and replaces the existing revenue recognition guidance. The guidance is effective for annual and interim periods beginning on or after December 15, 2016 and will replace most existing revenue recognition guidance under U.S. GAAP when it becomes effective. It permits the use of either a retrospective or cumulative effect transition method and early adoption is not permitted. The Company has not yet selected a transition method and is in the process of evaluating the effect this standard will have on its consolidated financial statements and related disclosures.
Reclassifications	Reclassifications
	Certain prior period amounts in the consolidated financial statements, and notes thereto, have been reclassified to conform to current period presentation.

Basis_of_Presentation_and_Gene2

Basis of Presentation and General Information (Tables)	12 Months Ended
	Jan. 02, 2015
Basis Of Presentation And General Information [Abstract]
Carrying Amount And Activity Of Goodwill
				Hackett
		The Hackett		Technology
		Group		Solutions		Total
	Balance at December 28, 2012	$	44,887	$	31,333	$	76,220
	Allocation of goodwill related to discontinued operations		—		-199		-199
	Foreign currency translation adjustment		262		—		262
	Balance at December 27, 2013		45,149		31,134		76,283
	Foreign currency translation adjustment		-854		—		-854
	Balance at January 2, 2015	$	44,295	$	31,134	$	75,429
Components Of Other Intangible Assets, Included In Other Assets
				January 2,		December 27,
				2015		2013
	Gross carrying amount			$	22,448	$	14,699
	Accumulated amortization				-16,472		-14,260
	Foreign currency translation adjustment				33		6
				$	6,009	$	445
Reconciliation Of Basic And Diluted Weighted Average Shares
		Year Ended
		January 2,		December 27,		December 28,
		2015		2013		2012
	Basic weighted average common shares outstanding		28,718,263		30,283,298		31,703,544
	Effect of dilutive securities:
	Unvested restricted stock units and common stock subject
	to vesting requirements issued to employees		1,152,974		1,809,565		1,765,351
	Common stock issuable upon the exercise of stock options		9,765		22,802		41,817
	Dilutive weighted average common shares outstanding		29,881,002		32,115,665		33,510,712

Accounts_Receivable_And_Unbill1

Accounts Receivable And Unbilled Revenue, Net (Tables)	12 Months Ended
	Jan. 02, 2015
Accounts Receivable And Unbilled Revenue, Net [Abstract]
Accounts Receivable And Unbilled Revenue, Net
		January 2,		December 27,
		2015		2013
	Accounts receivable	$	28,154	$	27,147
	Unbilled revenue		10,597		8,538
	Allowance for doubtful accounts		-1,330		-1,674
		$	37,421	$	34,011

Property_And_Equipment_Net_Tab

Property And Equipment, Net (Tables)	12 Months Ended
	Jan. 02, 2015
Property and Equipment, net [Abstract]
Schedule Of Property And equipment
		January 2,		December 27,
		2015		2013
	Equipment	$	6,044	$	4,814
	Software		21,604		19,815
	Leasehold improvements		454		518
	Furniture and fixtures		498		609
			28,600		25,756
	Less accumulated depreciation		-14,847		-12,737
		$	13,753	$	13,019

Accrued_Expenses_And_Other_Lia1

Accrued Expenses And Other Liabilities (Tables)	12 Months Ended
	Jan. 02, 2015
Accrued Expenses And Other Liabilities [Abstract]
Components Of Accrued Expenses And Other Liabilities
		January 2,		December 27,
		2015		2013
	Accrued compensation and benefits	$	3,266	$	5,163
	Accrued bonuses		7,682		5,899
	Accrued restructuring related expenses		270		134
	Deferred revenue		8,896		8,345
	Accrued Technolab earnout liability		3,440		—
	Accrued sales, use, franchise and VAT tax		1,977		1,393
	Other accrued expenses		5,370		4,712
	Total accrued expenses and other liabilities	$	30,901	$	25,646

Lease_Commitments_Tables

Lease Commitments (Tables)	12 Months Ended
	Jan. 02, 2015
Lease Commitments [Abstract]
Future Minimum Lease Commitments Under Non-Cancelable Operating Leases
		Rental
		Payments
	2015	$	1,933
	2016		1,846
	2017		1,226
	2018		969
	2019		902
	Thereafter		1,151
	Total	$	8,027

Restructuring_Costs_Tables

Restructuring Costs (Tables)	12 Months Ended
	Jan. 02, 2015
Restructuring Costs [Abstract]
Summary Of Restructuring Expense Accruals
		Severance and		Exit, Closure
		Other		and
		Employee		Consolidation
		Costs		of Facilities		Total
	Accrual balance at December 28, 2012	$	—	$	246	$	246
	2013 expenditures		—		-112		-112
	Accrual balance at December 27, 2013	$	—	$	134	$	134
	2014 additions		3,534		70		3,604
	2014 expenditures		-3,313		-155		-3,468
	Accrual balance at January 2, 2015	$	221	$	49	$	270

Credit_Facility_Tables

Credit Facility (Tables)	12 Months Ended
	Jan. 02, 2015
Credit Facility [Abstract]
Future Schedule Of Annual Amortization Of Principal
		Principal
		Amortization
		Payments
	2015	$	—
	2016		4,981
	2017		6,641
	2018		6,641
	Total	$	18,263

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
	Jan. 02, 2015
Income Taxes [Abstract]
Components Of Income (Loss) Before Income Taxes
		Year Ended
		January 2,		December 27,		December 28,
		2015		2013		2012
	Domestic	$	6,549	$	15,823	$	15,269
	Foreign		5,417		-696		950
	Income before income taxes	$	11,966	$	15,127	$	16,219
Components of income Tax (Benefit) Expense
		Year Ended
		January 2,		December 27,		December 28,
		2015		2013		2012
	Current tax expense (benefit)
	Federal	$	155	$	10	$	-314
	State		131		530		961
	Foreign		132		103		66
			418		643		713
	Deferred tax expense (benefit)
	Federal		200		6,450		4,532
	State		-238		394		-3,587
	Foreign		1,875		-1,089		-2,136
			1,837		5,755		-1,191
	Income tax expense (benefit)	$	2,255	$	6,398	$	-478
Reconciliation Of The Federal Statutory Tax Rate With The Effective Tax Rate
		Year Ended
		January 2,		December 27,		December 28,
		2015		2013		2012
	U.S statutory income tax expense rate	35.0	%	35.0	%	35.0	%
	State income taxes, net of federal income tax expense	-0.6		4.0		8.0
	Valuation reduction	-1		-0.5		-47.7
	Meals and entertainment	2.0		1.7		1.5
	Foreign rate differential	-10.6		1.0		-0.2
	Bargain purchase gain	-8.7		—		—
	Foreign exchange loss	0.1		0.4		0.1
	Other, net	2.6		0.7		0.3
	Effective tax rate	18.8	%	42.3	%	-3	%
Components Of The Net Deferred income Tax Asset (Liability)
				Year Ended
				January 2,		December 27,
				2015		2013
	Deferred income tax assets:
	Allowance for doubtful accounts			$	518	$	661
	Net operating loss and tax credits carryforward				9,283		12,855
	Accrued expenses and other liabilities				3,160		3,967
					12,961		17,483
	Valuation allowance				-1,452		-1,569
					11,509		15,914
	Deferred income tax liabilities:
	Depreciation				-4,628		-4,614
	Tax over book amortization on goodwill and intangibles				-9,872		-10,546
	Other items				-106		-11
					-14,606		-15,171
	Net deferred income tax asset (liability)			$	-3,097	$	743
Detail And Activity Of The ASC 740-10 Liability
				Year Ended
				January 2,		December 27,
				2015		2013
	Beginning balance			$	716	$	1,015
	Additions based on tax positions				76		—
	Reduction for prior year tax deductions				—		-299
	Ending balance			$	792	$	716

Stock_Based_Compensation_Table

Stock Based Compensation (Tables)	12 Months Ended
	Jan. 02, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Summary Of Stock Option Activity Under The Company's Stock Option Plans	Stock option activity under the Company’s stock option plans for the year ended January 2, 2015 is summarized as follows:
			Option Shares			Weighted Average		Weighted Average			Aggregate
						Exercise Price		Remaining			Intrinsic Value
								Contractual Term
	Outstanding as of December 27, 2013		366,714		$	4.39
	Exercised		-8,750			4.04
	Forfeited or expired		-60,297			6.35
	Outstanding as of January 2, 2015		297,667		$	4.00		6.79		$	1,399,979
	Exercisable at January 2, 2015		17,667		$	3.96		0.44		$	83,798
	A summary of the Company’s stock option activity for the years ended December 27, 2013 and December 28, 2012 was as follows:
			27-Dec-13					28-Dec-12
			Option Shares			Weighted Average		Option Shares			Weighted Average
						Exercise Price					Exercise Price
	Outstanding at beginning of year		3,898,864		$	4.34		867,375		$	5.53
	Granted (1)		—			—		3,196,563			4.00
	Exercised		-109,683			4.29		-76,986			2.53
	Forfeited or expired (1)		-3,422,467			4.33		-88,088			5.46
	Outstanding at end of year		366,714		$	4.39		3,898,864		$	4.34
	Exercisable at end of year		86,714		$	5.63		702,301		$	5.86
		-1		Includes 2,916,563 of unvested performance-based stock options granted in 2012 and subsequently surrendered and replaced with SARs in 2013 and 470,000 vested stock options surrendered in 2013 and replaced with SARs. See SARs discussion below.
Other Information Pertaining To Stock Option Activity
			Year Ended
			2-Jan-15			27-Dec-13			28-Dec-12
	Total intrinsic value of stock options exercised		$	36		$	163		$	177
Summary Information About The Company's Stock Options Outstanding
			Options Outstanding							Options Exercisable
	Range of Exercise Prices		Number		Weighted Average			Weighted Average		Number			Weighted Average
			Outstanding		Remaining			Exercise Price		Exercisable			Exercise Price
					Contractual Life
					(Years)
	$0.00 - $4.00		297,667		6.79		$	4.00		17,667		$	3.96
Summary Of Assumptions Used To Determine Fair Value
	Expected volatility		43%
	Risk-free rate		0.35%
	Expected term (in years)		6-Feb
Summary Of Activity For Common Stock Subject To Vesting Requirements
			Number of Shares of			Weighted Average
			Common Stock			Grant-Date
			Subject to Vesting			Fair Value
			Requirements
	Nonvested balance as of December 27, 2013			177,647		$	3.31
	Granted			164,474			6.04
	Vested			-77,647			2.73
	Nonvested balance as of January 2, 2015			264,474		$	7.54
Stock Appreciation Rights (SARs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Summary Of Stock Option Activity Under The Company's Stock Option Plans
			Number of SARs			Weighted Average			Weighted Average
						Exercise Price			Fair Value
	Outstanding as of December 27, 2013			3,386,563		$	4.31		$	0.99
	Expired			-470,000			6.25			1.23
	Outstanding as of January 2, 2015			2,916,563		$	4.00		$	0.96
	Exercisable at January 2, 2015			—		$	—		$	—
Summary Of Assumptions Used To Determine Fair Value
	Expected volatility		43%
	Risk-free rate		0.35%
	Expected term (in years)		2
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Summary Of Restricted Stock Unit Activity
			Number of			Weighted Average
			Restricted			Grant-Date
			Stock Units			Fair Value
	Nonvested balance as of December 27, 2013			2,910,304		$	4.17
	Granted			914,233			6.00
	Vested			-1,321,949			3.95
	Forfeited			-187,375			6.51
	Nonvested balance as of January 2, 2015			2,315,213		$	5.41

Acquisition_Tables

Acquisition (Tables)	12 Months Ended
	Jan. 02, 2015
Acquisitions And Investing Activities [Abstract]
Purchase Price Allocation
			Purchase Price
			Allocation
	Total consideration	$	3,000
	Allocation of purchase price
	Cash		522
	Accounts receivable		1,346
	Total current assets acquired		1,868
	Intangible assets		7,749
	Total assets acquired		9,617
	Accrued expenses and other liabilities		1,711
	Deferred tax liability		1,891
	Total liabilities acquired		3,602
	Net assets identifiable assets	$	6,015
	Bargain purchase gain on acquisition	$	3,015
Acquired Intangible Assets
	Category			Amount                        (in thousands)	Useful Life           (in years)
	Customer Base		$	4,727	5
	Trade Name			115	2
	Customer Backlog			2,031	2
	Non-Compete			876	5
			$	7,749

Geographic_And_Service_Group_I1

Geographic And Service Group Information (Tables)	12 Months Ended
	Jan. 02, 2015
Geographic And Service Group Information [Abstract]
Geographic Revenue
		Year Ended
		January 2,		December 27,		December 28,
		2015		2013		2012
	Revenue:
	North America	$	190,050	$	179,539	$	173,650
	International (primarily European countries)		46,687		44,291		49,086
	Total revenue	$	236,737	$	223,830	$	222,736
Long-Lived Assets Attributable To Geographic Area
			January 2,	December 27,		December 28,
			2015	2013		2012
	Long-Lived Assets:
	North America	$	80,152	$	74,095	$	74,407
	International (primarily European countries)		15,578		16,246		16,270
	Total long-lived assets	$	95,730	$	90,341	$	90,677
Revenue By Service Group
		Year Ended
		January 2,		December 27,		December 28,
		2015		2013		2012
	The Hackett Group	$	196,145	$	184,112	$	187,787
	ERP Solutions		40,592		39,718		34,949
	Total revenue	$	236,737	$	223,830	$	222,736

Quarterly_Financial_Informatio1

Quarterly Financial Information (Tables)	12 Months Ended
	Jan. 02, 2015
Quarterly Financial Information [Abstract]
Unaudited Supplemental Quarterly Financial Information
			Quarter Ended (1)
			March 28,		June 27,		September 26,		January 2,
			2014		2014		2014		2015
	Total revenue		$	54,905	$	61,052	$	60,437	$	60,343
	Operating income (loss) (2)(3)		$	-1,680	$	5,026	$	5,059	$	4,181
	Income (loss) from continuing operations (2)(3)		$	-2,046	$	3,475	$	3,591	$	4,691
	Income (loss) from discontinued operations (4)		$	—	$	—	$	—	$	—
	Net income (loss) (2)(3)		$	-2,046	$	3,475	$	3,591	$	4,691
	Basic net income (loss) per common share:
	Income (loss) per common share from continuing operations		$	-0.07	$	0.12	$	0.13	$	0.17
	Income (loss) per common share from discontinued operations(4)			—		—		—		—
	Net income (loss) per common share		$	-0.07	$	0.12	$	0.13	$	0.17
	Diluted net income (loss) per common share:
	Income (loss) per common share from continuing operations		$	-0.07	$	0.12	$	0.12	$	0.16
	Income (loss) per common share from discontinued operations(4)			—		—		—		—
	Net income (loss) per common share		$	-0.07	$	0.12	$	0.12	$	0.16
			Quarter Ended
			March 29,		June 28,		September 27,		December 27,
			2013		2013		2013		2013
	Total revenue		$	54,349	$	58,961	$	57,916	$	52,604
	Operating income		$	3,529	$	5,085	$	4,717	$	2,396
	Income from continuing operations		$	2,029	$	2,930	$	2,699	$	1,206
	Income (loss) from discontinued operations		$	-71	$	—	$	-64	$	—
	Net income (5)		$	1,958	$	2,930	$	2,635	$	1,206
	Basic net income per common share:
	Income per common share from continuing operations		$	0.06	$	0.10	$	0.09	$	0.04
	Income (loss) per common share from discontinued operations			—		—		—		—
	Net income per common share		$	0.06	$	0.10	$	0.09	$	0.04
	Diluted net income per common share:
	Income per common share from continuing operations		$	0.07	$	0.09	$	0.08	$	0.04
	Income (loss) per common share from discontinued operations			-0.01		—		—		—
	Net income per common share		$	0.06	$	0.09	$	0.08	$	0.04
		-1		The fiscal 2014 quarters presented above, are as previously reported. See table below which restates the 2014 Statement of Operations by quarter for the impact of the Technolab EPM AMS acquisition-related purchase consideration reflected as compensation expense, as well as other acquisition-related adjustments recorded in the fourth quarter of 2014, as mentioned in Note 16.
		-2		The fiscal quarter ended March 28, 2014, includes restructuring costs of $3.6 million.
		-3		The fiscal quarter ended January 2, 2015, includes a bargain purchase gain from the acquisition of the Technolab EPM AMS of $3.0 million.
		-4		There were no discontinued operations in fiscal year 2014.
		-5		The quarter ended December 28, 2012 included the benefit of the release of $6.7 million of deferred income tax asset valuation allowance. Quarterly basic and diluted net income per common share were computed independently for each quarter and do not necessarily total to the year to date basic and diluted net income per common share.
	The following table presents the restated 2014 Statement of Operations by quarter for the impact of the acquisition-related purchase consideration reflected as compensation expense, as well as other acquisition-related adjustments recorded in the fourth quarter of 2014 as discussed in Note 16 (in thousands, except per share amounts):
				Quarter Ended
				28-Mar-14		27-Jun-14		27-Sep-14		2-Jan-15
			(unaudited)
	Revenue:
	Revenue before reimbursements		$	49,418	$	55,000	$	54,550	$	54,551
	Reimbursements			5,487		6,052		5,887		5,792
	Total revenue			54,905		61,052		60,437		60,343
	Costs and expenses:
	Cost of service:
	Personnel costs before reimbursable expenses (1)
	(includes $686,  $999,  $842 and $1,029 of stock
	compensation expense in Q1, Q2, Q3 and Q4 2014)			34,184		35,427		35,142		34,205
	Reimbursable expenses			5,487		6,052		5,887		5,792
	Total cost of service			39,671		41,479		41,029		39,997
	Selling, general and administrative costs  (2)
	(includes $653,  $691,  $814 and $656 of stock
	compensation expense in Q1, Q2, Q3 and Q4 2014)			14,235		15,607		15,422		16,122
	Bargain purchase gain from acquisition (1) (2)			-3,015		-		-		-
	Restructuring costs			3,604		-		-		-
	Total costs and operating expenses			54,495		57,086		56,451		56,119
	Income from operations			410		3,966		3,986		4,224
	Other income (expense):
	Interest income			1		1		2		2
	Interest expense			-124		-166		-173		-163
	Income from continuing operations before income taxes			287		3,801		3,815		4,063
Income tax (benefit) expense (3)			-118		973		879		521
Net income		$	405	$	2,828	$	2,936	$	3,542
Basic net income per common share		$	0.01	$	0.10	$	0.10	$	0.13
Weighted average common shares outstanding			29,120		28,939		28,558		28,257
Diluted net income per common share		$	0.01	$	0.10	$	0.10	$	0.12
Diluted			29,869		29,984		29,800		29,871
(1) The cost of service adjustments reflect the re-charaterization of cash and equity which were previously accounted for as purchase consideration
and are now reflected as compensation expense.  These adjustments contributed to a bargain purchase gain from the Technolab acquisition.
(2)  The selling, general and administrative costs reflect adjustmens related to the acquired intangible assets and amortization expense of those assets.
These adjustments contributed to a bargain purchase from the Technolab acquisition.
(3)  The income tax expense (benefit) reflect adjustments related to the Technolab acquisition which were finalized and re-characterized in the fourth
quarter of 2014.

Basis_of_Presentation_and_Gene3

Basis of Presentation and General Information (Narrative) (Details) (USD $)	12 Months Ended			3 Months Ended
In Millions, except Per Share data, unless otherwise specified	Jan. 02, 2015	Dec. 27, 2013	Dec. 28, 2012	Mar. 16, 2015
	segment	customer	customer
	customer
Basis Of Presentation And General Information [Line Items]
Annual cash dividend per share	$0.12	$0.10	$0.10
Period of intangible assets amortized	5 years
Goodwill write off	$0.20
Future amortization expense, 2015	2.2
Future amortization expense, 2016	1.2
Future amortization expense, 2017	1.3
Future amortization expense, 2018	$1.30
Common stock excluded from reconciliation	0.3	0.8	3.9
Number of customers accounted for more than five percent of revenue	0	0	0
Number of operating segments	1
Minimum [Member]
Basis Of Presentation And General Information [Line Items]
Useful life of property and equipments	3 years
Provisions apply to specific employees	6 months
Maximum [Member]
Basis Of Presentation And General Information [Line Items]
Useful life of property and equipments	7 years
Provisions apply to specific employees	12 months
Subsequent Event [Member]
Basis Of Presentation And General Information [Line Items]
Dividend declared				$0.14

Basis_of_Presentation_and_Gene4

Basis of Presentation and General Information (Carrying Amount And Activity Of Goodwill)(Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jan. 02, 2015	Dec. 27, 2013
Carrying amount and activity of goodwill
Goodwill, Beginning Balance	$76,283	$76,220
Allocation of goodwill related to discontinued operations		-199
Foreign currency translation adjustment	-854	262
Goodwill, Ending Balance	75,429	76,283
The Hackett Group [Member]
Carrying amount and activity of goodwill
Goodwill, Beginning Balance	45,149	44,887
Foreign currency translation adjustment	-854	262
Goodwill, Ending Balance	44,295	45,149
Hackett Technology Solutions [Member]
Carrying amount and activity of goodwill
Goodwill, Beginning Balance		31,333
Allocation of goodwill related to discontinued operations		-199
Goodwill, Ending Balance	$31,134	$31,134

Basis_of_Presentation_and_Gene5

Basis of Presentation and General Information (Components Of Other Intangible Assets, Included In Other Assets)(Details) (USD $)	Jan. 02, 2015	Dec. 27, 2013
In Thousands, unless otherwise specified
Components of Other intangible assets, included in other assets
Gross carrying amount	$22,448	$14,699
Accumulated amortization	-16,472	-14,260
Foreign currency translation adjustment	33	6
Intangible Assets, net	$6,009	$445

Basis_of_Presentation_and_Gene6

Basis of Presentation and General Information (Reconciliation Of Basic And Diluted Weighted Average Shares)(Details)	12 Months Ended
	Jan. 02, 2015	Dec. 27, 2013	Dec. 28, 2012
Basis Of Presentation And General Information [Abstract]
Basic weighted average common shares outstanding	28,718,263	30,283,298	31,703,544
Unvested restricted stock units and common stock subject to vesting requirements issued to employees	1,152,974	1,809,565	1,765,351
Common stock issuable upon the exercise of stock options	9,765	22,802	41,817
Dilutive weighted average common shares outstanding	29,881,002	32,115,665	33,510,712

Accounts_Receivable_And_Unbill2

Accounts Receivable And Unbilled Revenue, Net (Details) (USD $)	Jan. 02, 2015	Dec. 27, 2013
In Thousands, unless otherwise specified
Accounts Receivable And Unbilled Revenue, Net [Abstract]
Accounts receivable	$28,154	$27,147
Unbilled revenue	10,597	8,538
Allowance for doubtful accounts	-1,330	-1,674
Accounts receivable and unbilled revenue, net	$37,421	$34,011

Property_And_Equipment_Net_Nar

Property And Equipment, Net (Narrative) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jan. 02, 2015	Dec. 27, 2013	Dec. 28, 2012
Property and Equipment, net [Abstract]
Depreciation expense	$2,357	$1,883	$2,080

Property_And_Equipment_Net_Sch

Property And Equipment, Net (Schedule Of Property And equipment) (Details) (USD $)	Jan. 02, 2015	Dec. 27, 2013
In Thousands, unless otherwise specified
Property Plant And Equipment [Line Items]
Property and equipment, gross	$28,600	$25,756
Less accumulated depreciation	-14,847	-12,737
Property, Plant and Equipment, Net, Total	13,753	13,019
Equipment [Member]
Property Plant And Equipment [Line Items]
Property and equipment, gross	6,044	4,814
Software [Member]
Property Plant And Equipment [Line Items]
Property and equipment, gross	21,604	19,815
Leasehold Improvements [Member]
Property Plant And Equipment [Line Items]
Property and equipment, gross	454	518
Furniture And Fixtures [Member]
Property Plant And Equipment [Line Items]
Property and equipment, gross	$498	$609

Restricted_Cash_Details

Restricted Cash (Details) (USD $)	Dec. 27, 2013
In Thousands, unless otherwise specified
Restricted Cash [Abstract]
Deposit with financial institutions	$354

Accrued_Expenses_And_Other_Lia2

Accrued Expenses And Other Liabilities (Details) (USD $)	Jan. 02, 2015	Dec. 27, 2013
In Thousands, unless otherwise specified
Accrued Expenses And Other Liabilities [Abstract]
Accrued compensation and benefits	$3,266	$5,163
Accrued bonuses	7,682	5,899
Accrued restructuring related expenses	270	134
Deferred revenue	8,896	8,345
Accrued Technolab earnout liability	3,440
Accrued sales, use, franchise and VAT tax	1,977	1,393
Other accrued expenses	5,370	4,712
Total accrued expenses and other liabilities	$30,901	$25,646

Lease_Commitments_Narrative_De

Lease Commitments (Narrative) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Jan. 02, 2015	Dec. 27, 2013	Dec. 28, 2012
Lease Commitments [Abstract]
Rent expense, net of subleases	$2.20	$1.90	$2.10

Lease_Commitments_Future_Minim

Lease Commitments (Future Minimum Lease Commitments Under Non-Cancelable Operating Leases) (Details) (USD $)	Jan. 02, 2015
In Thousands, unless otherwise specified
Lease Commitments [Abstract]
2015	$1,933
2016	1,846
2017	1,226
2018	969
2019	902
Thereafter	1,151
Total	$8,027

Restructuring_Costs_Narrative_

Restructuring Costs (Narrative) (Details) (USD $)	3 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Mar. 28, 2014	Jan. 02, 2015	Dec. 28, 2012	Dec. 27, 2013
Restructuring Costs [Abstract]
Restructuring costs	$3,600	$3,604	($211)
Accrual balance		$270	$246	$134

Restructuring_Costs_Summary_Of

Restructuring Costs (Summary Of Restructuring Expense Accruals) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jan. 02, 2015	Dec. 27, 2013
Restructuring Cost and Reserve [Line Items]
Accrual balance	$134	$246
Additions	3,604
expenditures	-3,468	-112
Accrual balance	270	134
Severance And Other Employee Costs [Member]
Restructuring Cost and Reserve [Line Items]
Accrual balance
Additions	3,534
expenditures	-3,313
Accrual balance	221
Exit, Closure And Consolidation Of Facilities [Member]
Restructuring Cost and Reserve [Line Items]
Accrual balance	134	246
Additions	70
expenditures	-155	-112
Accrual balance	$49	$134

Credit_Facility_Narrative_Deta

Credit Facility (Narrative) (Details) (USD $)	12 Months Ended
	Jan. 02, 2015	Feb. 21, 2012	Dec. 27, 2013	Aug. 27, 2013
Line of Credit Facility [Line Items]
Interest rate per annum	1.92%
Issuance costs		$600,000
Prepaid mandatory principal amortization	6,600,000
Base Rate [Member]
Line of Credit Facility [Line Items]
Margin percentage base rate	1.75%
London Interbank Offered Rate (LIBOR) [Member]
Line of Credit Facility [Line Items]
Margin percentage base rate	1.00%
Revolving line of credit facility [Member]
Line of Credit Facility [Line Items]
Borrowing capacity under credit facility		20,000,000
Credit facility amount outstanding	0
Term Loan [Member]
Line of Credit Facility [Line Items]
Borrowing capacity under credit facility		30,000,000
Credit facility amount outstanding	18,300,000		19,000,000
Revolving Line Of Credit Facility And Term Loan [Member]
Line of Credit Facility [Line Items]
Additional borrowing capacity				$17,000,000

Credit_Facility_Future_Schedul

Credit Facility (Future Schedule Of Annual Amortization Of Principal) (Details) (USD $)	Jan. 02, 2015
In Thousands, unless otherwise specified
Future principal amortization payment
2015
2016	4,981
2017	6,641
2018	6,641
Total	$18,263

Income_Taxes_Narrative_Details

Income Taxes (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 28, 2012	Jan. 02, 2015	Dec. 27, 2013
Income Tax Examination [Line Items]
Income tax benefit included the valuation allowance	$6,700,000
Foreign net operating loss carryforwards		11,700,000
Valuation allowance		1,452,000	1,569,000
Undistributed earnings in foreign subsidiaries		2,000,000
Accrued income tax-related interest and penalties		357,000	226,000
ASC 740-10 tax liabilities, current	1,015,000	792,000	716,000
U.S. Federal [Member]
Income Tax Examination [Line Items]
U.S. operating loss carryforwards		12,000,000
State [Member]
Income Tax Examination [Line Items]
U.S. operating loss carryforwards		3,100,000
UNITED KINGDOM
Income Tax Examination [Line Items]
Foreign net operating loss carryforwards		5,500,000
FRANCE
Income Tax Examination [Line Items]
Foreign net operating loss carryforwards		1,300,000
GERMANY
Income Tax Examination [Line Items]
Foreign net operating loss carryforwards		$600,000

Income_Taxes_Components_Of_Inc

Income Taxes (Components Of Income (Loss) Before Income Taxes) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jan. 02, 2015	Dec. 27, 2013	Dec. 28, 2012
Income Taxes [Abstract]
Domestic	$6,549	$15,823	$15,269
Foreign	5,417	-696	950
Income before income taxes	$11,966	$15,127	$16,219

Recovered_Sheet1

Income Taxes (Components of income Tax (Benefit) Expense) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jan. 02, 2015	Dec. 27, 2013	Dec. 28, 2012
Current tax (benefit) expense
Federal	$155	$10	($314)
State	131	530	961
Foreign	132	103	66
Current Income Tax Expense (Benefit), Total	418	643	713
Deferred tax (benefit) expense
Federal	200	6,450	4,532
State	-238	394	-3,587
Foreign	1,875	-1,089	-2,136
Deferred Income Tax Expense (Benefit), Total	1,837	5,755	-1,191
Income Tax Expense (Benefit), Total	$2,255	$6,398	($478)

Income_Taxes_Reconciliation_Of

Income Taxes (Reconciliation Of The Federal Statutory Tax Rate With The Effective Tax Rate) (Details)	12 Months Ended
	Jan. 02, 2015	Dec. 27, 2013	Dec. 28, 2012
Income Taxes [Abstract]
U.S. statutory income tax expense rate	35.00%	35.00%	35.00%
State income taxes, net of federal income tax benefit	-0.60%	4.00%	8.00%
Valuation reduction	-1.00%	-0.50%	-47.70%
Meals and entertainment	2.00%	1.70%	1.50%
Foreign rate differential	-10.60%	1.00%	-0.20%
Bargain purchase gain	-8.70%
Foreign exchange loss	0.10%	0.40%	0.10%
Other, net	2.60%	0.70%	0.30%
Effective tax rate	18.80%	42.30%	-3.00%

Income_Taxes_Components_Of_The

Income Taxes (Components Of The Net Deferred income Tax Asset (Liability)) (Details) (USD $)	Jan. 02, 2015	Dec. 27, 2013
In Thousands, unless otherwise specified
Deferred income tax assets:
Allowance for doubtful accounts	$518	$661
Net operating loss and tax credits carryforward	9,283	12,855
Accrued expenses and other liabilities	3,160	3,967
Deferred Tax Assets, Total	12,961	17,483
Valuation allowance	-1,452	-1,569
Deferred tax assets, net	11,509	15,914
Deferred income tax liabilities:
Depreciation	-4,628	-4,614
Tax over book amortization on goodwill and intangibles	-9,872	-10,546
Other items	-106	-11
Deferred tax liabilities, net	-14,606	-15,171
Net deferred income tax asset (liability)	($3,097)	$743

Income_Taxes_Detail_And_Activi

Income Taxes (Detail And Activity Of The ASC 740-10 Liability) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jan. 02, 2015	Dec. 27, 2013
Income Taxes [Abstract]
Unrecognized Tax Benefits, Beginning Balance	$716	$1,015
Additions based on tax positions	76
Reduction for prior year tax deductions		-299
Unrecognized Tax Benefits, Ending balance	$792	$716

Stock_Based_Compensation_Narra

Stock Based Compensation (Narrative) (Details) (USD $)	0 Months Ended	12 Months Ended			1 Months Ended
	Feb. 08, 2012	Jan. 02, 2015	Dec. 27, 2013	Dec. 28, 2012	Mar. 31, 2013	Jan. 01, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share based compensation		$6,370,000	$6,119,000	$5,522,000
Performance based stock option grant				3,196,563
Shares available for future issuance		1,726,938
Fair value	$1.31
Performance based stock option grant, Exercise price	$4			$4
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share based compensation		5,000,000	4,800,000	4,200,000
Restricted stock units, vesting schedules options one		4 years
Restricted stock units, vesting schedules options two		4 years
Restricted stock units, vesting schedules options three		3 years
Percentage of vesting on restricted stock, option two, First anniversary		25.00%
Percentage of vesting on restricted stock, option three, First anniversary		33.00%
Percentage of vesting on restricted stock, option one, Second anniversary		50.00%
Percentage of vesting on restricted stock, option two, Second anniversary		25.00%
Percentage of vesting on restricted stock, option three, Second anniversary		33.00%
Percentage of vesting on restricted stock, option one, Third anniversary		25.00%
Percentage of vesting on restricted stock, option two, Third anniversary		25.00%
Percentage of vesting on restricted stock, option three, Third anniversary		33.00%
Percentage of vesting on restricted stock, option one, Fourth anniversary		25.00%
Percentage of vesting on restricted stock, option two, Fourth anniversary		25.00%
Compensation expense related to nonvested restricted stock unit based awards		6,500,000
Weighted average period, Restricted stock units		1 year 11 months 9 days
Common Stock Subject to Vesting Requirements [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share based compensation		900,000	800,000	700,000
Options vesting period		5 years
Compensation expense related to common stock subject to vesting requirements		1,000,000
Weighted average period, Common stock		3 years
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share based compensation		500,000	500,000	600,000
Performance based stock option grant	2,916,563			2,916,563	2,916,563
Existing restricted stock unit Exchange Percentage	50.00%
Growth of Pro-forma EPS Percentage	50.00%
Growth of Pro-forma EBITDA percentage	50.00%
Performance based stock option vesting term		6 years
Trailing period		12 months
Percentage of outstanding option on performance based		100.00%
Performance Shares [Member] | Chief Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance based stock option grant	1,912,500
Performance Shares [Member] | Chief Operating Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance based stock option grant	1,004,063
Stock Appreciation Rights (SARs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Surrendered shares			470,000
Stock Appreciation Rights (SARs) And Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value				$1.31
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options vesting period		4 years
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options vesting period		10 years
Technolab International Corporation [Member] | Common Stock Subject to Vesting Requirements [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share based compensation		0
Options vesting period		4 years
Technolab International Corporation [Member] | Scenario, Forecast [Member] | Common Stock Subject to Vesting Requirements [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Share-based Liabilities Paid						$4,600,000

Stock_Based_Compensation_Summa

Stock Based Compensation (Summary Of Stock Option Activity Under The Company's Stock Option Plans) (Details) (USD $)	0 Months Ended	12 Months Ended
	Feb. 08, 2012	Jan. 02, 2015	Dec. 27, 2013	Dec. 28, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding, Option Shares, Beginning Balance		366,714	3,898,864	867,375
Granted, Option Shares				3,196,563
Exercised, Option Shares		-8,750	-109,683	-76,986
Forfeited or expired, Option Shares		-60,297	-3,422,467	-88,088
Outstanding, Option Shares, Ending Balance		297,667	366,714	3,898,864
Exercisable, Option Shares		17,667	86,714	702,301
Outstanding, Weighted Average Exercise Price, Beginning Balance		$4.39	$4.34	$5.53
Granted, Weighted Average Exercise Price	$4			$4
Exercised, Weighted Average Exercise Price		$4.04	$4.29	$2.53
Forfeited or expired, Weighted Average Exercise Price		$6.35	$4.33	$5.46
Outstanding, Weighted Average Exercise Price, Ending Balance		$4	$4.39	$4.34
Exercisable, Weighted Average Exercise Price		$3.96	$5.63	$5.86
Outstanding, Weighted Average Remaining Contractual Term		6 years 9 months 15 days
Exercisable, Weighted Average Remaining Contractual Term		5 months 9 days
Outstanding, Aggregate Intrinsic Value		$1,399,979
Exercisable, Aggregate Intrinsic Value		$83,798
Stock Appreciation Rights (SARs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding, Option Shares, Beginning Balance		3,386,563
Expired, Option Shares		-470,000
Outstanding, Option Shares, Ending Balance		2,916,563
Exercisable, Option Shares
Outstanding, Weighted Average Exercise Price, Beginning Balance		$4.31
Expired, Weighted Average Exercise Price		$6.25
Outstanding, Weighted Average Exercise Price, Ending Balance		$4
Exercisable, Weighted Average Exercise Price
Outstanding, Weighted Average Fair Value, Beginning Balance		$0.99
Expired, Weighted Average Fair Value		$1.23
Outstanding, Weighted Average Fair Value, Ending Balance		$0.96
Exercisable, Weighted Average Fair Value

Stock_Based_Compensation_Other

Stock Based Compensation (Other Information Pertaining To Stock Option Activity) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jan. 02, 2015	Dec. 27, 2013	Dec. 28, 2012
Stock Based Compensation [Abstract]
Total intrinsic value of stock options exercised	$36	$163	$177

Stock_Based_Compensation_Summa1

Stock Based Compensation (Summary Information About The Company's Stock Options Outstanding) (Details) (USD $)	12 Months Ended
	Jan. 02, 2015	Dec. 27, 2013	Dec. 28, 2012	Dec. 30, 2011
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of Outstanding Options	297,667	366,714	3,898,864	867,375
Number of Exercisable Options	17,667	86,714	702,301
Weighted Average Exercise Price, Options Exercisable	$3.96	$5.63	$5.86
$0.00 - $4.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Range	$0
Range of Exercise Prices, Upper Range	$4
Number of Outstanding Options	297,667
Weighted Average Remaining Contractual Life, Options Outstanding	6 years 9 months 15 days
Weighted Average Exercise Price	$4
Number of Exercisable Options	17,667
Weighted Average Exercise Price, Options Exercisable	$3.96

Stock_Based_Compensation_Summa2

Stock Based Compensation (Summary Of Assumptions Used To Determine Fair Value) (Details)	12 Months Ended
	Dec. 28, 2012	Jan. 02, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility	43.00%
Risk-free rate	0.35%
Stock Appreciation Rights (SARs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility		43.00%
Risk-free rate		0.35%
Expected term		2 years
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term		2 years
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term		6 years

Stock_Based_Compensation_Summa3

Stock Based Compensation (Summary Of Restricted Stock Unit Activity) (Details) (Restricted Stock Units (RSUs) [Member], USD $)	12 Months Ended
	Jan. 02, 2015
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Stock Units, Nonvested balance as of December 27, 2013	2,910,304
Number of Restricted Stock Units, Granted	914,233
Number of Restricted Stock Units, Vested	-1,321,949
Number of Restricted Stock Units, Forfeited	-187,375
Number of Stock Units, Nonvested balance as of January 2, 2015	2,315,213
Weighted Average Grant-Date Fair Value, Nonvested balance as of December 27, 2013	$4.17
Weighted average grant-date fair value	$6
Weighted Average Grant-Date Fair Value, Vested	$3.95
Weighted Average Grant-Date Fair Value, Forfeited	$6.51
Weighted Average Grant-Date Fair Value, Nonvested balance as of January 2, 2015	$5.41

Stock_Based_Compensation_Summa4

Stock Based Compensation (Summary Of Activity For Common Stock Subject To Vesting Requirements) (Details) (Common Stock Subject to Vesting Requirements [Member], USD $)	12 Months Ended
	Jan. 02, 2015
Common Stock Subject to Vesting Requirements [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Stock Units, Nonvested balance as of December 27, 2013	177,647
Number of Restricted Stock Units, Granted	164,474
Number of Restricted Stock Units, Vested	-77,647
Number of Stock Units, Nonvested balance as of January 2, 2015	264,474
Weighted Average Grant-Date Fair Value, Nonvested balance as of December 27, 2013	$3.31
Weighted average grant-date fair value	$6.04
Weighted Average Grant-Date Fair Value, vested	$2.73
Weighted Average Grant-Date Fair Value, Nonvested balance as of January 2, 2015	$7.54

Shareholders_Equity_Details

Shareholders' Equity (Details) (USD $)	0 Months Ended	1 Months Ended			12 Months Ended			3 Months Ended	1 Months Ended	156 Months Ended
	Oct. 15, 2013	Sep. 26, 2013	Aug. 28, 2013	Mar. 21, 2012	Jan. 02, 2015	Dec. 27, 2013	Dec. 28, 2012	Mar. 16, 2015	Jul. 30, 2002	Jan. 02, 2015
Stockholders Equity [Line Items]
Stock repurchase authorized		$25,000,000	$35,750,000
Common stock, par value					$0.00	$0.00				$0.00
Price per share repurchased in tender offer	$7			$5
Stock repurchase cost of tender offer net of fees and expenses related to tender offer	6,900,000			55,000,000		7,170,000	55,587,000
Percentage of issued and outstanding shares repurchased in tender offer	3.00%			27.00%
Number of stock repurchased in tender offer	1,000,000			11,000,000
Percentage of eligble compensation allowed, per grant purchase					10.00%
Interval between employee stock purchases					6 months
Employee purchase price as percentage of trading value					95.00%
Annual share repurchase authorized, value					25,000
Employee stock purchase plan, expiration date					1-Jul-18
Common stock available for issuance employee stock purchase plans					4,275,000
Shares available for issuance, per offering period					400,000
Shares issued under ESPP					94,333	113,905	117,757
Annual cash dividend per share					$0.12	$0.10	$0.10
Dividend payment					3,508,000	3,096,000	3,081,000
Minimum [Member]
Stockholders Equity [Line Items]
Price per share repurchased in tender offer		$6.50	$5.75
Period of service qualification					3 months
Maximum [Member]
Stockholders Equity [Line Items]
Price per share repurchased in tender offer		$7	$6.50
Subsequent Event [Member]
Stockholders Equity [Line Items]
Dividend declared								$0.14
Common Stock [Member]
Stockholders Equity [Line Items]
Stock repurchase authorized					95,000,000				5,000,000
Stock repurchase cost of tender offer net of fees and expenses related to tender offer					11,000,000	1,000	11,000
Number of stock repurchased in tender offer						983	11,000
Additional stock repurchase authorized										90,000,000
Repurchase of common stock					1,800,000
Purchase price per share					$6.07	$5.86
Shares repurchased					24,000,000	22,200,000				24,000,000
Cumulative purchases					91,300,000					91,300,000
Amount available under repurchase plan					$3,700,000
Common Stock [Member] | Average [Member]
Stockholders Equity [Line Items]
Purchase price per share					$3.81	$3.62

Benefit_Plan_Details

Benefit Plan (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Jan. 02, 2015	Dec. 27, 2013	Dec. 28, 2012
Benefit Plan [Abstract]
Percentage of pre-tax annual compensation contributed to the plan	15.00%
Percentage of matching contributions of employee	25.00%	25.00%	25.00%
Percentage of matching contributions of employee's gross salary	4.00%	4.00%	4.00%
Company's matching contributions	$0.30	$0.30	$0.30

Recovered_Sheet2

Transactions With Related Parties (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jan. 02, 2015	Dec. 27, 2013	Dec. 28, 2012
Transactions With Related Parties [Abstract]
Related party transactions	$0	$0	$0

Acquisition_Narrative_Details

Acquisition (Narrative) (Details) (USD $)	3 Months Ended								12 Months Ended
	Jan. 02, 2015	Sep. 26, 2014	Jun. 27, 2014	Mar. 28, 2014	Dec. 27, 2013	Sep. 27, 2013	Jun. 28, 2013	Mar. 29, 2013	Jan. 02, 2015	Dec. 27, 2013	Dec. 28, 2012
Business Acquisition [Line Items]
Purchase price, cash									$2,877,000
Bargain purchase gain									3,015,000
Revenue	60,343,000	60,437,000	61,052,000	54,905,000	52,604,000	57,916,000	58,961,000	54,349,000	236,737,000	223,830,000	222,736,000
Technolab International Corporation [Member]
Business Acquisition [Line Items]
Contingent consideration				8,000,000
Purchase price	3,000,000			3,000,000
Purchase price, common stock				1,000,000
Acquired intangible assets	7,700,000								7,700,000
Adjustments To Labor and Related Expense	9,000,000
Compensation expense									4,300,000
Deferred tax liability	1,891,000								1,891,000
Bargain purchase gain	3,015,000
Revenue									10,300,000
Contribution before depreciation, amortization, interest, corporate overhead allocation and taxes									$3,300,000
Minimum [Member] | Technolab International Corporation [Member]
Business Acquisition [Line Items]
Amortization period									2 years
Maximum [Member] | Technolab International Corporation [Member]
Business Acquisition [Line Items]
Amortization period									5 years

Acquisition_Purchase_Price_All

Acquisition (Purchase Price Allocation) (Details) (USD $)	12 Months Ended	3 Months Ended
In Thousands, unless otherwise specified	Jan. 02, 2015	Jan. 02, 2015	Mar. 28, 2014
Business Acquisition [Line Items]
Bargain purchase gain on acquisition	$3,015
Technolab International Corporation [Member]
Business Acquisition [Line Items]
Total consideration		3,000	3,000
Cash	522	522
Accounts receivable	1,346	1,346
Total current assets acquired	1,868	1,868
Intangible assets	7,749	7,749
Total assets acquired	9,617	9,617
Accrued expenses and other liabilities	1,711	1,711
Deferred tax liability	1,891	1,891
Total liabilities acquired	3,602	3,602
Net assets identifiable assets	6,015	6,015
Bargain purchase gain on acquisition		$3,015

Acquisition_Intangible_Assets_

Acquisition (Intangible Assets Acquired) (Details) (Technolab International Corporation [Member], USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 28, 2014
Acquired Finite-Lived Intangible Assets [Line Items]
Amount	$7,749
Customer Base [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amount	4,727
Useful Life (in years)	5 years
Trade Names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amount	115
Useful Life (in years)	2 years
Customer Backlog [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amount	2,031
Useful Life (in years)	2 years
Non-Compete [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amount	$876
Useful Life (in years)	5 years

Geographic_And_Service_Group_I2

Geographic And Service Group Information (Narrative) (Details) (USD $)	Jan. 02, 2015	Dec. 27, 2013	Dec. 28, 2012
In Millions, unless otherwise specified
Geographic And Service Group Information [Abstract]
Goodwill included in foreign assets	$15	$15.80	$15.60

Geographic_And_Service_Group_I3

Geographic And Service Group Information (Geographic Revenue) (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Jan. 02, 2015	Sep. 26, 2014	Jun. 27, 2014	Mar. 28, 2014	Dec. 27, 2013	Sep. 27, 2013	Jun. 28, 2013	Mar. 29, 2013	Jan. 02, 2015	Dec. 27, 2013	Dec. 28, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$60,343	$60,437	$61,052	$54,905	$52,604	$57,916	$58,961	$54,349	$236,737	$223,830	$222,736
North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue									190,050	179,539	173,650
International Primarily European Countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue									$46,687	$44,291	$49,086

Geographic_And_Service_Group_I4

Geographic And Service Group Information (Long-Lived Assets Attributable To Geographic Area) (Details) (USD $)	Jan. 02, 2015	Dec. 27, 2013	Dec. 28, 2012
In Thousands, unless otherwise specified
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	$95,730	$90,341	$90,677
North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	80,152	74,095	74,407
International Primarily European Countries [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total long-lived assets	$15,578	$16,246	$16,270

Geographic_And_Service_Group_I5

Geographic And Service Group Information (Revenue By Service Group) (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Jan. 02, 2015	Sep. 26, 2014	Jun. 27, 2014	Mar. 28, 2014	Dec. 27, 2013	Sep. 27, 2013	Jun. 28, 2013	Mar. 29, 2013	Jan. 02, 2015	Dec. 27, 2013	Dec. 28, 2012
Segment Reporting Information [Line Items]
Total revenue	$60,343	$60,437	$61,052	$54,905	$52,604	$57,916	$58,961	$54,349	$236,737	$223,830	$222,736
The Hackett Group [Member]
Segment Reporting Information [Line Items]
Total revenue									196,145	184,112	187,787
ERP Solutions [Member]
Segment Reporting Information [Line Items]
Total revenue									$40,592	$39,718	$34,949

Quarterly_Financial_Informatio2

Quarterly Financial Information (Unaudited Supplemental Quarterly Financial Information) (Narrative) (Details) (USD $)	3 Months Ended		12 Months Ended			3 Months Ended
In Thousands, unless otherwise specified	Mar. 28, 2014	Dec. 27, 2013	Jan. 02, 2015	Dec. 27, 2013	Dec. 28, 2012	Jan. 02, 2015	Sep. 26, 2014	Jun. 27, 2014
Quarterly Financial Information [Line Items]
Total share based compensation			$6,370	$6,119	$5,522
Restructuring costs	3,600		3,604		-211
Bargain purchase gain			3,015
Release of deferred income tax valuation allowance		6,700	1,949	5,705	-1,191
Cost of Sales [Member]
Quarterly Financial Information [Line Items]
Total share based compensation	686		3,556	3,284	2,990	1,029	842	999
Selling General and Administrative [Member]
Quarterly Financial Information [Line Items]
Total share based compensation	$653		$2,814	$2,835	$2,524	$656	$814	$691

Quarterly_Financial_Informatio3

Quarterly Financial Information (Unaudited Supplemental Quarterly Financial Information) (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Share data, unless otherwise specified	Jan. 02, 2015	Sep. 26, 2014	Jun. 27, 2014	Mar. 28, 2014	Dec. 27, 2013	Sep. 27, 2013	Jun. 28, 2013	Mar. 29, 2013	Jan. 02, 2015	Dec. 27, 2013	Dec. 28, 2012
Revenue:
Revenue before reimbursements									$213,519	$200,391	$199,749
Reimbursements									23,218	23,439	22,987
Total revenue	60,343	60,437	61,052	54,905	52,604	57,916	58,961	54,349	236,737	223,830	222,736
Cost of service:
Personnel costs before reimbursable expenses (includes $686, $999, $842 and $1,029 of stock compensation expense in Q1, Q2, Q3 and Q4 2014)									138,958	130,456	125,912
Reimbursable expenses									23,218	23,439	22,987
Total cost of service									162,176	153,895	148,899
Selling, general and administrative costs (includes $653, $691, $814 and $656 of stock compensation expense in Q1, Q2, Q3 and Q4 2014)									61,386	54,208	56,997
Bargain purchase gain from acquisition									-3,015
Restructuring costs				3,600					3,604		-211
Total costs and operating expenses									224,151	208,103	205,685
Operating income	4,181	5,059	5,026	-1,680	2,396	4,717	5,085	3,529	12,586	15,727	17,051
Other income (expense):
Interest income									6	7	20
Interest expense									-626	-472	-630
Income from continuing operations before income taxes									11,966	15,262	16,441
Income tax (benefit) expense									2,255	6,398	-478
Income from continuing operations	4,691	3,591	3,475	-2,046	1,206	2,699	2,930	2,029	9,711	8,864	16,919
Loss from discontinued operations						-64		-71		-135	-222
Net income	4,691	3,591	3,475	-2,046	1,206	2,635	2,930	1,958	9,711	8,729	16,697
Basic net income per common share:
Income per common share from continuing operations	$0.17	$0.13	$0.12	($0.07)	$0.04	$0.09	$0.10	$0.06	$0.34	$0.29	$0.54
Loss per common share from discontinued operations											($0.01)
Net income per common share	$0.17	$0.13	$0.12	($0.07)	$0.04	$0.09	$0.10	$0.06	$0.34	$0.29	$0.53
Diluted net income per common share:
Income per common share from continuing operations	$0.16	$0.12	$0.12	($0.07)	$0.04	$0.08	$0.09	$0.07	$0.33	$0.28	$0.51
Loss per common share from discontinued operations								($0.01)		($0.01)	($0.01)
Net income per common share	$0.16	$0.12	$0.12	($0.07)	$0.04	$0.08	$0.09	$0.06	$0.33	$0.27	$0.50
Weighted average common shares outstanding:
Basic									28,718,263	30,283,298	31,703,544
Diluted									29,881,002	32,115,665	33,510,712
Impact Of Acquisition-Related Purchase Consideration [Member]
Revenue:
Revenue before reimbursements	54,551	54,550	55,000	49,418
Reimbursements	5,792	5,887	6,052	5,487
Total revenue	60,343	60,437	61,052	54,905
Cost of service:
Personnel costs before reimbursable expenses (includes $686, $999, $842 and $1,029 of stock compensation expense in Q1, Q2, Q3 and Q4 2014)	34,205	35,142	35,427	34,184
Reimbursable expenses	5,792	5,887	6,052	5,487
Total cost of service	39,997	41,029	41,479	39,671
Selling, general and administrative costs (includes $653, $691, $814 and $656 of stock compensation expense in Q1, Q2, Q3 and Q4 2014)	16,122	15,422	15,607	14,235
Bargain purchase gain from acquisition				-3,015
Restructuring costs				3,604
Total costs and operating expenses	56,119	56,451	57,086	54,495
Operating income	4,224	3,986	3,966	410
Other income (expense):
Interest income	2	2	1	1
Interest expense	-163	-173	-166	-124
Income from continuing operations before income taxes	4,063	3,815	3,801	287
Income tax (benefit) expense	521	879	973	-118
Net income	$3,542	$2,936	$2,828	$405
Basic net income per common share:
Net income per common share	$0.13	$0.10	$0.10	$0.01
Diluted net income per common share:
Net income per common share	$0.12	$0.10	$0.10	$0.01
Weighted average common shares outstanding:
Basic	28,257,000	28,558,000	28,939,000	29,120,000
Diluted	29,871,000	29,800,000	29,984,000	29,869,000

Schedule_II_Valuation_and_Qual1

Schedule II - Valuation and Qualifying Accounts and Reserves (Details) (Allowance for Doubtful Accounts [Member], USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jan. 02, 2015	Dec. 27, 2013	Dec. 28, 2012
Allowance for Doubtful Accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	$1,674	$1,251	$799
Charge to Expense (Recovery)	785	742	657
Write-offs	-1,129	-319	-205
Balance at End of Year	$1,330	$1,674	$1,251