Information Services (III) 10-K 13 Mar 15 2014 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
	Dec. 31, 2014	Feb. 27, 2015	Jun. 30, 2014
Document and Entity Information
Entity Registrant Name	Information Services Group Inc.
Entity Central Index Key	1371489
Document Type	10-K
Document Period End Date	31-Dec-14
Amendment Flag	FALSE
Current Fiscal Year End Date	-19
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Public Float			$156,161,460
Entity Common Stock, Shares Outstanding		37,038,495
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY

CONSOLIDATED_BALANCE_SHEETS

CONSOLIDATED BALANCE SHEETS (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Current assets
Cash and cash equivalents	$27,662	$35,085
Accounts receivable, net of allowance of $234 and $352, respectively	41,148	38,688
Deferred tax asset	1,138	825
Prepaid expense and other current assets	2,130	2,116
Total current assets	72,078	76,714
Restricted cash	364	54
Furniture, fixtures and equipment, net of accumulated depreciation of $6,143 and $4,575, respectively	3,478	3,213
Goodwill	36,400	34,691
Intangible assets, net	18,335	22,093
Other assets	3,514	3,109
Total assets	134,169	139,874
Current liabilities
Accounts payable	7,312	6,024
Current maturities of long-term debt	3,938	3,375
Deferred revenue	4,898	3,944
Accrued expenses	21,116	21,189
Total current liabilities	37,264	34,532
Long-term debt, net of current maturities	49,434	53,371
Deferred tax liability	-631	2,432
Other liabilities	6,007	6,296
Total liabilities	92,705	96,631
Commitments and contingencies (Note 13)
Redeemable noncontrolling interest	747
Stockholders' equity
Preferred stock, $.001 par value; 10,000 shares authorized; none issued
Common stock, $.001 par value, 100,000 shares authorized; 37,943 shares issued and 36,762 outstanding at December 31, 2014 and 37,943 shares issued and 37,122 outstanding at December 31, 2013	38	38
Additional paid-in-capital	204,525	208,602
Treasury stock (1,181 and 821 common shares, respectively, at cost)	-5,244	-2,796
Accumulated other comprehensive loss	-4,582	-2,448
Accumulated deficit	-154,020	-160,153
Total stockholders' equity	40,717	43,243
Total liabilities and stockholders' equity	$134,169	$139,874

CONDENSED_CONSOLIDATED_BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, except Per Share data, unless otherwise specified
CONSOLIDATED BALANCE SHEETS
Accounts receivable, allowances (in dollars)	$234	$352
Furniture, fixtures and equipment, accumulated depreciation (in dollars)	$6,143	$4,575
Preferred stock, par value (in dollars per share)	$0.00	$0.00
Preferred stock, shares authorized	10,000	10,000
Preferred stock, shares issued	0	0
Common stock, par value (in dollars per share)	$0.00	$0.00
Common stock, shares authorized	100,000	100,000
Common stock, shares issued	37,943	37,943
Common stock, shares outstanding	36,762	37,122
Treasury stock, shares	1,181	821

CONDENSED_CONSOLIDATED_STATEME

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (LOSS)
Revenues	$209,617	$210,982	$192,745
Operating expenses
Direct costs and expenses for advisors	124,132	123,985	114,429
Selling, general and administrative	65,434	67,823	62,909
Depreciation and amortization	7,373	7,473	8,857
Operating income	12,678	11,701	6,550
Interest income	18	20	45
Interest expense	-2,229	-2,712	-3,146
Gain on extinguishment of debt		79
Bargain purchase gain	146
Foreign currency transaction loss	-145	-45	-209
Income before taxes	10,468	9,043	3,240
Income tax provision	4,164	4,267	2,637
Net income	6,304	4,776	603
Net income attributable to noncontrolling interest	126
Net income attributable to ISG	6,178	4,776	603
Weighted average shares outstanding:
Basic (in shares)	37,086	36,810	36,205
Diluted (in shares)	38,693	38,687	37,626
Earnings per share attributable to ISG:
Basic (in dollars per share)	$0.17	$0.13	$0.02
Diluted (in dollars per share)	$0.16	$0.13	$0.02
Cash dividends declared	$0.14
Comprehensive income:
Net Income	6,178	4,776	603
Foreign currency translation, net of tax (expense) benefit of $1,128, $248 and $(149)	-2,134	-405	204
Comprehensive income	4,170	4,371	807
Comprehensive income attributable to noncontrolling interest	126
Comprehensive income attributable to ISG	$4,044	$4,371	$807

CONSOLIDATED_STATEMENT_OF_COMP

CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (LOSS) (Parenthetical) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (LOSS)
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax, Portion Attributable to Parent	$1,128	$248	($149)

CONSOLIDATED_STATEMENT_OF_STOC

CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (USD $)	Common Stock	Additional Paid In Capital	Treasury Stock	Accumulated Other Comprehensive Income	Retained Earnings	Total
In Thousands, unless otherwise specified
Balance at Dec. 31, 2011	$37	$204,076	($450)	($2,247)	($165,532)	$35,884
Balance (in shares) at Dec. 31, 2011	36,675
Increase (Decrease) in Stockholders' Equity
Net income					603	603
Other comprehensive income (loss)				204		204
Equity securities repurchased			-1,513			-1,513
Proceeds from issuance of ESPP		-29	363			334
Issuance of treasury shares		-1,276	1,276
Stock based compensation		2,797				2,797
Balance at Dec. 31, 2012	37	205,568	-324	-2,043	-164,929	38,309
Balance (in shares) at Dec. 31, 2012	36,675
Increase (Decrease) in Stockholders' Equity
Net income					4,776	4,776
Other comprehensive income (loss)				-405		-405
Equity securities repurchased			-4,055			-4,055
Proceeds from issuance of ESPP		55	327			382
Issuance of treasury shares		-1,256	1,256
Issuance of common stock	1	-1
Issuance of common stock (in shares)	1,268
Tax benefit on stock issuance		851				851
Stock based compensation		3,385				3,385
Balance at Dec. 31, 2013	38	208,602	-2,796	-2,448	-160,153	43,243
Balance (in shares) at Dec. 31, 2013	37,943					37,943
Increase (Decrease) in Stockholders' Equity
Net income					6,178	6,178
Other comprehensive income (loss)				-2,134		-2,134
Equity securities repurchased			-5,320			-5,320
Proceeds from issuance of ESPP		-2	578			576
Issuance of treasury shares		-2,294	2,294
Accretion attributable to noncontrolling interest					-45	-45
Reduction of ownership in Compass Italy		-343				-343
Dividend declared		-5,128				-5,128
Restricted shares for CCI Acquisition		237				237
Tax benefit on stock issuance		346				346
Stock based compensation		3,107				3,107
Balance at Dec. 31, 2014	$38	$204,525	($5,244)	($4,582)	($154,020)	$40,717
Balance (in shares) at Dec. 31, 2014	37,943					37,943

CONSOLIDATED_STATEMENT_OF_CASH

CONSOLIDATED STATEMENT OF CASH FLOWS (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Cash flows from operating activities
Net income	$6,304	$4,776	$603
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation expense	1,792	1,647	1,707
Amortization of intangibles	5,581	5,827	7,150
Gain on extinguishment of debt		-79
Bargain purchase gain	-146
Tax benefit from stock issuances	-346	-851
Amortization of deferred financing costs	153	214	350
Stock-based compensation	3,107	3,385	2,797
Change in fair value of contingent consideration	658	1,299	-2,000
Changes in accounts receivable allowance	-100	49	297
Deferred tax benefit	-1,789	-1,814	-2,643
Loss on disposal of fixed assets	19	66	22
Changes in operating assets and liabilities:
Accounts receivable	-2,321	897	931
Prepaid expense and other current assets	-456	-495	-1,071
Accounts payable	1,121	-48	1,953
Deferred revenue	953	292	-951
Accrued expenses	-7,523	7,890	1,585
Net cash provided by operating activities	7,007	23,055	10,730
Cash flows from investing activities
Acquisitions, net of cash acquired	-890		-24
Restricted cash	-310	-2	-1
Purchase of furniture, fixtures and equipment	-2,170	-1,901	-1,823
Net cash used in investing activities	-3,370	-1,903	-1,848
Cash flows from financing activities
Proceeds from debt		55,000
Principal payments on borrowings	-3,375	-60,822	-7,000
Proceeds from issuance of ESPP shares	576	382	334
Payment of contingent consideration	-1,633		-2,000
Debt issuance costs		-754
Tax benefit from stock issuances	346	851
Equity securities repurchased	-5,320	-4,055	-1,513
Net cash used in financing activities	-9,406	-9,398	-10,179
Effect of exchange rate changes on cash	-1,654	-168	327
Net (decrease) increase in cash and cash equivalents	-7,423	11,586	-970
Cash and cash equivalents, beginning of period	35,085	23,499	24,469
Cash and cash equivalents, end of period	27,662	35,085	23,499
Cash paid for:
Interest	1,785	2,406	2,609
Taxes	5,721	6,636	1,966
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]
Issuance of treasury stock for vested restricted stock awards and SARs	$2,294	$1,256	$1,276

DESCRIPTION_OF_ORGANIZATION_AN

DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS	12 Months Ended
	Dec. 31, 2014
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS
	NOTE 1—DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS
	Information Services Group, Inc. (the "Company", or "ISG") was founded in 2006 with the strategic vision to become a high-growth, leading provider of information-based advisory services. In 2007, we consummated our initial public offering and completed the acquisition of TPI Advisory Services Americas, Inc. ("TPI").

SUMMARY_OF_SIGNIFICANT_ACCOUNT

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	12 Months Ended
	Dec. 31, 2014
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
	NOTE 2—SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
	Basis of Presentation and Principles of Consolidation
	The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. These consolidated financial statements and footnotes are presented in accordance with accounting principles generally accepted in the United States of America ("GAAP"). All intercompany accounts and transactions have been eliminated in consolidation. Unless the context requires otherwise, references to the Company include ISG and its consolidated subsidiaries.
	Use of Estimates
	The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements and revenues and expenses during the periods reported. Actual results may differ from those estimates. The complexity of the estimation process and issues related to the assumptions, risks and uncertainties inherent in the application of the proportional performance method of accounting affect the amounts of revenues, expenses, unbilled receivables and deferred revenue. Numerous internal and external factors can affect estimates. Estimates are also used for but not limited to: allowance for doubtful accounts, useful lives of furniture, fixtures and equipment and definite-lived intangible assets, depreciation expense, fair value assumptions in analyzing goodwill and intangible asset impairments, income taxes and deferred tax asset valuation, and the valuation of stock based compensation.
	Business Combinations
	We have acquired businesses critical to the Company's long-term growth strategy. Results of operations for acquisitions are included in the accompanying consolidated statement of comprehensive income from the date of acquisition. Acquisitions are accounted for using the purchase method of accounting and the purchase price is allocated to the net assets acquired based upon their estimated fair values at the date of acquisition. The excess of the purchase price over the net assets was recorded as goodwill. Final valuations of assets and liabilities are obtained and recorded within one year from the date of the acquisition. We recorded a bargain purchase gain of approximately $0.1 million for the year ended December 31, 2014. This gain relates to the newly acquired shares of CTP. This gain resulted as the fair value of the net assets acquired exceeded the consideration transferred.
	Cash and Cash Equivalents
	The Company considers all highly liquid instruments with an original maturity of three months or less to be cash equivalents, including certain money market accounts. The Company principally maintains its cash in money market and bank deposit accounts in the United States of America which typically exceed applicable insurance limits. The Company believes it is not exposed to any significant credit risk on cash and cash equivalents.
	Restricted Cash
	Restricted cash consists of cash and cash equivalents which the Company has pledged to fulfill certain obligations and are not available for general corporate purposes.
	Accounts and Unbilled Receivables and Allowance for Doubtful Accounts
	Our trade receivables primarily consist of amounts due for services already performed via fixed fee or time and materials arrangements. The Company maintains an allowance for doubtful accounts for estimated losses resulting from the inability of clients to pay fees or for disputes that affect its ability to fully collect billed accounts receivable. The allowance for these risks is prepared by reviewing the status of all accounts and recording reserves on a specific identification method based on previous experiences and historical bad debts. However, our actual experience may vary significantly from these estimates. If the financial condition of our clients were to deteriorate, resulting in their inability or unwillingness to pay their invoices, we may need to record additional allowances or write-offs in future periods. To the extent the provision relates to a client's inability or unwillingness to make required payments, the provision is recorded as bad debt expense, which is classified within selling, general and administrative expense in the accompanying consolidated statement of comprehensive income.
	The provision for unbilled services is recorded as a reduction to revenues to the extent the provision relates to fee adjustments and other discretionary pricing adjustments.
	Prepaid Expenses and Other Assets
	Prepaid expenses and other assets consist primarily of prepaid expenses for insurance, conferences and deposits for facilities, programs and promotion items.
	Furniture, Fixtures and Equipment, net
	Furniture, fixtures and equipment is recorded at cost. Depreciation is computed by applying the straight-line method over the estimated useful life of the assets, which ranges from three to five years. Leasehold improvements are depreciated over the lesser of the useful life of the underlying asset or the lease term, which generally range from three to five years. Expenditures for renewals and betterments are capitalized. Repairs and maintenance are charged to expense as incurred. The cost and accumulated depreciation of assets sold or otherwise disposed of are removed from the accounts and any associated gain or loss thereon is reflected in the accompanying consolidated statement of comprehensive income.
	Internal-Use Software and Website Development Costs
	The Company capitalizes internal-use software and website development costs and records these amounts within furniture, fixtures and equipment. Accounting standards require that certain costs related to the development or purchase of internal-use software and systems as well as the costs incurred in the application development stage related to its website be capitalized and amortized over the estimated useful life of the software or system. They also require that costs related to the preliminary project stage, data conversion and post implementation/operation stage of an internal-use software development project be expensed as incurred.
	During the years ended December 31, 2014, 2013 and 2012, the Company capitalized $0.6 million, $0.7 million and $0.6 million, respectively, of costs associated with the system conversion and website development.
	Goodwill
	Our goodwill represents the excess of the cost of businesses acquired over the fair value of the net assets acquired at the date of acquisition. Goodwill is not amortized but rather tested for impairment at least annually by applying a fair-value based test in accordance with accounting and disclosure requirements for goodwill and other indefinite-lived intangible assets. This test is performed by us during our fourth fiscal quarter or more frequently if we believe impairment indicators are present.
	We performed step one of a two-step impairment test on goodwill. Step one compares the fair value of the reporting unit to its carrying amount, including goodwill. If the carrying value of the reporting unit exceeds the fair value of the reporting unit, then we must perform the second step of the impairment test whereby the carrying value of the reporting unit's goodwill is compared to its implied fair value. If the carrying value of the goodwill exceeds the implied fair value, an impairment loss equal to the difference is recorded.
	In performing the first step of the impairment test on goodwill, we determined the fair value of the reporting unit using both a market and income approach. The income approach utilizes a discounted cash flow model and is based on projections of future operations of the reporting unit as of the valuation date. The market approach is based on our stock price and provides a direct indication of fair value. Under the market approach, we determined the fair value of the reporting unit utilizing a relevant average of our common stock price for the October 31 measurement period, as quoted on the Nasdaq Global Market plus a 35% control premium based upon recent transactions of comparable companies. The discounted cash flow model assumed revenue growth rates of approximately 3% per year. We employed a discount rate of 13.5% to discount future excess cash flows. As a result of the step one test performed, the fair value of our reporting unit substantially exceeded the carrying value. Therefore, step two was not performed or required.
	Long-Lived Assets
	Long-lived assets, excluding goodwill and indefinite-lived intangibles, to be held and used by the Company are reviewed to determine whether any significant change in the long-lived asset's physical condition, a change in industry conditions or a reduction in cash flows associated with the use of the long-lived asset. If these or other factors indicate the carrying amount of the asset may not be recoverable, the Company determines whether impairment has occurred through the use of an undiscounted cash flow analysis of the asset at the lowest level for which identifiable cash flows exist. If impairment has occurred, the Company recognizes a loss for the difference between the carrying amount and the fair value of the asset. The fair value of the asset is measured using market prices or, in the absence of market prices, an estimate of discounted cash flows. Cash flows are generally discounted at an interest rate commensurate with our weighted average cost of capital for a similar asset. Assets are classified as held for sale when the Company has a plan for disposal of certain assets and those assets meet the held for sale criteria of accounting and disclosure requirement for the impairment or disposal of long-lived assets.
	Debt Issuance Costs
	Costs directly incurred in obtaining long-term financing, typically bank and attorney fees, are deferred and are amortized over the life of the related loan using the effective interest method. Deferred issuance costs are classified as other assets in the accompanying consolidated balance sheet. Amortization of debt issuance costs is included in interest expense and totaled $0.2 million, $0.2 million and $0.4 million for the years ended December 31, 2014, 2013 and 2012, respectively.
	Revenue Recognition
	We recognize our revenues for the sale of services and products when persuasive evidence of an arrangement exists, services have been rendered or delivery has occurred, the fee is fixed or determinable and the collectability of the related revenue is reasonably assured.
	We principally derive revenues from fees for services generated on a project-by-project basis. Prior to the commencement of a project, we reach agreement with the client on rates for services based upon the scope of the project, staffing requirements and the level of client involvement. It is our policy to obtain written agreements from new clients prior to performing services. In these agreements, the clients acknowledge that they will pay based upon the amount of time spent on the project or an agreed upon fee structure. Revenues for services rendered are recognized on a time and materials basis or on a fixed-fee or capped-fee basis in accordance with accounting and disclosure requirements for revenue recognition.
	Fees for services that have been performed, but for which we have not invoiced the customers are recorded as unbilled receivables in the accompanying consolidated balance sheets.
	Revenues from subscription contracts are recognized ratably over the life of the contract, which is generally one year. These fees are typically billed in advance and included in deferred revenue until recognized.
	Revenues for time and materials contracts are recognized based on the number of hours worked by our advisors at an agreed upon rate per hour and are recognized in the period in which services are performed. Revenues for time and materials contracts are billed monthly, semimonthly or in accordance with the specific contractual terms of each project.
	Revenues related to fixed-fee or capped-fee contracts are recognized into revenue as value is delivered to the customer. The pattern of revenue recognition for these contracts varies depending on the terms of the individual contracts, and may be recognized proportionally over the term of the contract or deferred until the end of the contract term and recognized when our obligations have been fulfilled with the customer. In instances where substantive acceptance provisions are specified in customer contracts, revenues are deferred until all acceptance criteria have been met. The pattern of revenue recognition for contracts where revenues are recognized proportionally over the term of the contact is based on the proportional performance method of accounting using the ratio of labor hours incurred to estimated total labor hours, which we consider to be the best available indicator of the pattern and timing in which contract obligations are fulfilled. 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 amount used in this calculation typically excludes the amount the client pays for reimbursable expenses. There are situations where the number of hours to complete projects may exceed our original estimate as a result of an increase in project scope or unforeseen events. On a regular basis, we review the hours incurred and estimated total labor hours to complete. The results of any revisions in these estimates are reflected in the period in which they become known. We believe we have demonstrated a history of successfully estimating the total labor hours to complete a project.
	The agreements entered into in connection with a project, whether on a time and materials basis or fixed-fee or capped-fee basis, typically allow our 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 us through the effective date of the termination. In addition, from time to time, we enter into agreements with clients that limit our right to enter into business relationships with specific competitors of that client for a specific time period. These provisions typically prohibit us from performing a defined range of services that 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.
	Reimbursable Expenditures
	Amounts billed to customers for reimbursable expenditures are included in revenues and the associated costs incurred by the Company are included in direct costs and expenses for advisors in the accompanying consolidated statement of comprehensive income. Non-reimbursable amounts are expensed as incurred. Reimbursable expenditures totaled $9.9 million, $10.4 million and $9.7 million for the years ended December 31, 2014, 2013 and 2012, respectively.
	Direct Costs and Expenses for Advisors
	Direct costs and expenses for advisors include payroll expenses and advisory fees directly associated with the generation of revenues and other program expenses. Direct costs and expenses for advisors are expensed as incurred.
	Direct costs and expenses for advisors also include expense accruals for discretionary bonus payments. Bonus accrual levels are adjusted throughout the year based on actual and projected individual and Company performance.
	Stock-Based Compensation
	We grant restricted stock with a fair value that is determined based on the closing price of our common stock on the date of grant. Restricted stock generally vests over a four-year period for employees and a three-year period for directors. Stock-based compensation expense is recognized ratably over the applicable service period.
	We follow the provisions of accounting and disclosures requirement for share-based payments, requiring the measurement and recognition of all share-based compensation under the fair value method.
	Concentration of Credit Risk
	Financial instruments that potentially subject the Company to significant concentrations of credit risk consist principally of cash and accounts receivable. The Company places its cash investments with high quality financial institutions. The Company extends credit to its customers based upon an evaluation of the customer's financial condition and credit history and generally does not require collateral.
	Treasury Stock
	The Company makes treasury stock purchases in the open market pursuant to the share repurchase program, which was approved by the Board of Directors on November 14, 2007.
	Treasury stock is recorded on the consolidated balance sheet at cost as a reduction of stockholders' equity. Shares are released from Treasury at original cost on a first-in, first-out basis, with any gain on the sale reflected as an adjustment to additional paid-in capital. Losses are reflected as an adjustment to additional paid-in capital to the extent of gains previously recognized, otherwise as an adjustment to retained earnings.
	Foreign Currency Translation
	The assets and liabilities of the Company's foreign subsidiaries are translated into U.S. dollars at exchange rates in effect at the end of the reporting period. Revenue and expense items are translated at average exchange rates for the reporting period. Resulting translation adjustments are included in the accompanying statement of comprehensive income and accompanying statement of stockholders' equity as a component of Accumulated Other Comprehensive Loss.
	The functional currency of the Company and its subsidiaries is the respective local currency. The Company has contracts denominated in foreign currencies and therefore, a portion of the Company's revenues are subject to foreign currency risks. Transactional currency gains and losses that arise from transactions denominated in currencies other than the functional currencies of our operations are recorded in Foreign Currency Transaction Loss in the accompanying consolidated statement of comprehensive income.
	Fair Value of Financial Instruments
	The carrying value of the Company's cash and cash equivalents, receivables, accounts payable, other current liabilities, and accrued interest approximate fair value.
	Fair value measurements were applied with respect to our nonfinancial assets and liabilities measured on a nonrecurring basis, which would consist of measurements primarily to goodwill, intangible assets and other long-lived assets, and assets acquired and liabilities assumed in a business combination.
	Fair value is the price that would be received upon a sale of an asset or paid upon a transfer of a liability in an orderly transaction between market participants at the measurement date (exit price). Market participants can use market data or assumptions in pricing the asset or liability, including assumptions about risk and the risks inherent in the inputs to the valuation technique. These inputs can be readily observable, market-corroborated, or generally unobservable. The use of unobservable inputs is intended to allow for fair value determinations in situations where there is little, if any, market activity for the asset or liability at the measurement date. Under the fair-value hierarchy:
	•	Level 1 measurements include unadjusted quoted market prices for identical assets or liabilities in an active market;
	•	Level 2 measurements include quoted market prices for identical assets or liabilities in an active market that have been adjusted for items such as effects of restrictions for transferability and those that are not quoted but are observable through corroboration with observable market data, including quoted market prices for similar assets; and
	•	Level 3 measurements include those that are unobservable and of a highly subjective measure.
	During 2014, there were no transfers of our financial assets between Level 1 and Level 2 measures. Our financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement.
	The Company held investments in cash equivalent money market funds of approximately $20,000 at December 31, 2014 and 2013, respectively. The Company considers the fair value of cash equivalent money market funds to be classified within Level 1 of the fair value hierarchy.
	The following table presents the carrying amounts and estimated fair values of our other financial instruments at December 31, 2014 and 2013:
		December 31,
		2014					2013
		Carrying			Estimated		Carrying		Estimated
		Amount			Fair Value		Amount		Fair Value
Liabilities:
Contingent consideration, including current portion(1)		$	4,810		$	4,810	$	4,085	$	4,085
Long-term debt, including current portion			53,371			53,412		56,746		56,762
		$	58,181		$	58,222	$	60,831	$	60,847
-1	The short-term portion is included in "accrued expenses." The long-term portion is included in "Other liabilities."
The fair values of these instruments are classified within Level 3 of the fair value hierarchy. The fair values of these instruments have been estimated using a discounted cash flow analysis based on the Company's incremental borrowing rate for similar borrowing arrangements. The incremental borrowing rate used to discount future cash flows ranged from 2.67% to 2.76%. The Company also considered recent transactions of peer group companies for similar instruments with comparable terms and maturities as well as an analysis of current market conditions.
The Company paid $1.6 million related to the STA contingent consideration during the second quarter of 2014. The Company also increased the STA contingent consideration liability by $0.5 million for year ended December 31, 2014, based on the latest estimates of future profit level due to completion of new projects. On April 15, 2014, the Company recorded a liability of $2.0 million representing the fair value of the contingent consideration related to the acquisition of CCI Consulting Pty Ltd ("CCI"). The Company also increased the CCI contingent consideration liability by $0.1 million for year ended December 31, 2014. The fair value measurement of this contingent consideration is classified within Level 3 of the fair value hierarchy and reflects the Company's own assumptions in measuring fair values using the income approach. In developing these estimates, the Company considered certain performance projections, historical results, and industry trends. This amount was estimated through a valuation model that incorporated probability-weighted assumptions related to the achievement of these milestones and thus the likelihood of the Company making payments. These cash outflow projections have been discounted using a rate ranging from 2.3% to 13.5%, which is the after-tax cost of debt financing for market participants.
The following table represents the change in the contingent consideration liability during the years ended December 31, 2014 and 2013:
		December 31,
		2014			2013
Beginning Balance		$	4,085		$	2,787
Acquisition			1,989			—
Remeasurement of contingent consideration			632			1,298
Unrealized loss related to currency translation			(248	)		—
Payments			(1,633	)		—
Ending Balance		$	4,825		$	4,085
Dividend
On December 2, 2014 the Board of Directors authorized a special dividend of $0.14 per share on the Company's issued and outstanding shares of common stock. This cash dividend was paid on January 28, 2015 to shareholders of record as of January 15, 2015. Prior to this special dividend we had not paid any dividends on our common stock.
Income Taxes
We use the asset and liability method to account for income taxes, including recognition of deferred tax assets and liabilities for the anticipated future tax consequences attributable to differences between financial statement amounts and their respective tax basis. We review our deferred tax assets for recovery. A valuation allowance is established when we believe that it is more likely than not that some portion of its deferred tax assets will not be realized. Changes in the valuation allowance from period to period are included in our tax provision in the period of change.
For uncertain tax positions, we use a prescribed model for assessing the financial recognition and measurement of all tax positions taken or expected to be taken in its tax returns. The guidance provides clarification on derecognition, classification, interest and penalties, accounting in interim periods, disclosures and transition. Our provision for income taxes also includes the impact of provisions established for uncertain income tax positions, as well as the related interest.
Recently Issued Accounting Pronouncements
In March 2013, the Financial Accounting Standards Board ("FASB") issued new accounting guidance clarifying the accounting for the release of cumulative translation adjustment into net income when a parent either sells a part or all of its investment in a foreign entity or no longer holds a controlling financial interest in a subsidiary or group of assets that is a nonprofit activity or a business within a foreign entity. The new standard is effective for fiscal years, and interim periods within those fiscal years, beginning on or after December 15, 2013. The adoption of this standard did not have a material impact on the Company's financial position, results of operations or cash flows.
In July 2013, the FASB issued new accounting guidance requires an entity to present an unrecognized tax benefit, or a portion of an unrecognized tax benefit, as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward, except to the extent a net operating loss carryforward, a similar tax loss, or a tax credit carryforward is not available at the reporting date under the tax law of the applicable jurisdiction to settle any additional income taxes that would result from the disallowance of a tax position or the tax law of the applicable jurisdiction does not require the entity to use, and the entity does not intend to use, the deferred tax asset for such purpose, the unrecognized tax benefit should be presented in the financial statements as a liability and should not be combined with deferred tax assets. No new recurring disclosures are required. The amendments are effective for annual and interim reporting periods beginning on or after December 15, 2013, and are to be applied prospectively to all unrecognized tax benefits that exist at the effective date. Retrospective application is permitted. The adoption of this standard did not have a material impact on the Company's financial position, results of operations or cash flows.
In April 2014, the FASB issued new accounting guidance regarding reporting discontinued operations and disclosures of disposals of components of an entity, which raises the threshold for determining which disposals are required to be presented as discontinued operations and modifies related disclosure requirements. The standard is applied prospectively and is effective in 2015 with early adoption permitted. The Company does not believe the adoption of this guidance will impact its consolidated financial statements or disclosures.
In May 2014, the FASB issued new accounting guidance outlines a single comprehensive model for entities to use in accounting for revenue. Under the guidance, revenue is recognized when a company transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. The standard is effective for public entities with annual and interim reporting periods beginning after December 15, 2016. Entities have the option of using either a full retrospective or a modified retrospective approach to adopt the guidance. We are currently assessing the effects this guidance may have on our consolidated financial statements, as well as the method of transition that we will use in adopting the new standard.
In August 2014, the FASB issued guidance on management's responsibility to assess an entity's ability to continue as a going concern and provide related footnote disclosures in certain circumstances. The guidance is effective for the Company's interim and annual periods beginning after December 15, 2016. The Company does not believe the adoption of this guidance will impact its consolidated financial statements or disclosures.

ACQUISITIONS

ACQUISITIONS	12 Months Ended
	Dec. 31, 2014
ACQUISITIONS
ACQUISITIONS
	NOTE 3—ACQUISITIONS
	CTP Acquisition
	On March 17, 2014, Compass Holding BV, a wholly-owned subsidiary of ISG entered into an Agreement with Convergent Technologies Partners S.p.A. ("CTP") whereby Compass Holding BV acquired 51% of CTP's share capital for $1.0 million, which included $0.7 million of cash acquired, providing the Company with control over CTP. CTP became a subsidiary of the Company on the date of acquisition. At the same time CTP acquired 100% interest of Compass Management Consulting Italy "Compass Italy", a subsidiary of Compass Holding BV for $0.3 million. The selling of Compass Italy and acquisition of CTP are treated as linked transactions and accordingly recorded on a net basis. The Company is consolidating the financial results of CTP in its consolidated financial statements and accordingly, reported revenues, costs and expenses, assets and liabilities, and cash flows include 100% of CTP, with the 49% noncontrolling interest share reported as net income attributable to noncontrolling interest in the consolidated statements of operations, and redeemable noncontrolling interest on the consolidated balance sheets.
	CTP is a leading management consulting firm providing specialized IT and operational strategies and solutions to Italy's public sector. The agreement with CTP extends our global penetration into the public sector, building on our successful public sector businesses in North America, Australia and the UK. It also provides new growth opportunities for the Company to serve both public and private sector organizations in Italy with our combined resources.
	The parties also executed a put and call option agreement for the transfer to ISG of all of the outstanding CTP's share capital that it does not own, exercisable upon certain conditions. The remaining 49% ownership in CTP is held by a third party. The third party representing the redeemable non-controlling interest in the subsidiary holds put rights for the remaining interest in CTP and the Company holds call rights with respect to such remaining interest. The put right provides the third party an option to sell its ownership interest to the Company after December 31, 2016 at a price based on four times the average of Earning Before Interests, Taxes, Depreciation and Amortization ("EBITDA") and for the year 2015 and year 2016, as resulting from CTP's approved financial statements for the year 2015 and year 2016 at the time of the exercise. Because the redeemable non-controlling interest in CTP has a redemption feature, as a result of the put option, the Company has classified the redeemable non-controlling interest in CTP in the mezzanine section of the Condensed Consolidated Balance Sheet. The redeemable non-controlling interest will be accreted to the redemption value by recording a corresponding adjustment to accumulated deficit at the end of each reporting period.
	The following table summarizes the consideration transferred to acquire CTP and the amounts of identified assets acquired and liabilities assumed at the acquisition date, as well as the fair value of the redeemable noncontrolling interest in CTP at the acquisition date:
	Fair value of consideration transferred:
	Cash		$	697
	Redeemable noncontrolling interest*			501
	Total fair value transferred		$	1,198
	*	Equivalent to 49% of CTP's share capital discounted for lack of control and marketability based on third party research.
	Recognized amounts of identifiable assets acquired and liabilities assumed as of March 17, 2014:
	Cash		$	734
	Accounts receivable			565
	Other assets			436
	Intangible assets			139
	Accounts payable			(65	)
	Accrued expenses and other			(465	)
	Net assets acquired		$	1,344
	Bargain purchase gain		$	(146	)
	This bargain purchase gain resulted as the fair value of the net assets acquired exceeded the consideration transferred. The excess resulted from the fact that the seller was motivated to sell.
	Costs associated with this acquisition are included in the selling, general and administrative expenses in the condensed consolidated statement of comprehensive income and totaled $0.2 million during the year ended December 31, 2014. This business combination was accounted for under the acquisition method of accounting, and as such, the aggregate purchase price was allocated to the assets acquired and liabilities assumed based on estimated fair values as of the closing dates. Based on the valuation and other factors as described above, the purchase price assigned to intangible assets and the amortization period were as follows:
			Purchase Price			Asset Life
			Allocation
	Amortizable intangible assets:
	Customer relationships		$	56		10 years
	Certified Methodology (patent)			83		3 years
	Total intangible assets		$	139
	CCI Acquisition
	On April 15, 2014, Technology Partners International, Inc., a wholly-owned subsidiary of ISG, executed an Asset Purchase Agreement (the "CCI Agreement") with CCI, and consummated the acquisition of all of the assets and assumption of certain liabilities of CCI. CCI is a Melbourne, Australia-based research firm that measures and analyzes customer satisfaction in business-to-business relationships. The agreement with CCI extends our global penetration into recurring revenue businesses in Asia Pacific. CCI's products are a natural complement to our "Assess" capabilities that analyze service performance and cost metrics.
	Under the terms of the CCI Agreement, ISG acquired the assets for cash consideration of AU$1.9 million, of which AU$1.0 million was paid at closing and AU$0.9 million will be paid in April 2015. In addition, the sellers under the CCI Agreement (the "CCI Sellers") are eligible to receive a minimum of AU$0 and a maximum up to AU$3.0 million of earn-out payments for fiscal years 2014-2016 if certain earnings targets are met. Finally, the CCI Sellers were granted 50,000 ISG Restricted Shares that will vest if certain target revenues of ISG and its affiliates are met.
	The following table summarizes the consideration transferred to acquire CCI and the amounts of identified assets acquired and liabilities assumed at the acquisition date:
	The final allocable purchase price consists of the following:
	Cash		$	934
	Post-completion installment payment			800
	Restricted stock*			237
	Contingent consideration			1,989
	Working capital adjustment			(56	)
	Total allocable purchase price		$	3,904
	*	50,000 shares at $4.74 at close of market on 4/15/2014 that vest upon achievement of certain performance measures.
	Recognized amounts of identifiable assets acquired and liabilities assumed as of April 15, 2014:
	Cash		$	7
	Accounts receivable			275
	Other assets			18
	Intangible assets			1,887
	Accounts payable			(27	)
	Accrued expenses and other			(203	)
	Net assets acquired		$	1,957
	Goodwill(1)		$	1,947
	-1	Goodwill of approximately $1.9 million acquired in the acquisition is deductible for tax purposes.
	Costs associated with this acquisition are included in the selling, general and administrative expenses in the condensed consolidated statement of comprehensive income and totaled $0.2 million during the year ended December 31, 2014. This business combination was accounted for under the acquisition method of accounting, and as such, the aggregate purchase price was allocated on a basis to the assets acquired and liabilities assumed based on estimated fair values as of the closing dates. Based on the valuation and other factors as described above, the purchase price assigned to intangible assets and the amortization period were as follows:
			Purchase Price			Asset Life
			Allocation
	Amortizable intangible assets:
	Customer relationships		$	1,270		20 years
	Databases			495		10 years
	Backlog			122		2 years
	Total intangible assets		$	1,887
	The Condensed Consolidated Financial Statements include the results of the CTP and CCI acquisition subsequent to the closing. Had the acquisition occurred as of January 1, 2013, the impact on the Company's results of operations would not have been material.

NET_INCOME_PER_COMMON_SHARE

NET INCOME PER COMMON SHARE	12 Months Ended
	Dec. 31, 2014
NET INCOME PER COMMON SHARE
NET INCOME PER COMMON SHARE
	NOTE 4—NET INCOME PER COMMON SHARE
	Basic earnings per share is computed by dividing net income available to common stockholders by the weighted average number of common shares outstanding for the period. The 250,000 contingently issuable shares related to the acquisition of STA Consulting as well as 50,000 contingently issuable/restricted shares related to the acquisition of CCI were excluded from basic and diluted earnings per share since the contingencies have not been met as of the reporting period. Diluted earnings per share reflects the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock or resulted in the issuance of common stock that would share in the net income of the Company. For the year ended December 31, 2014, the effect of 0.1 million stock appreciation rights ("SARs") have not been considered in the diluted earnings per share, since the market price of the stock was less than the exercise price during the period in the computation. For the year ended December 31, 2013, the effect of 0.1 million SARs have not been considered in the diluted earnings per share, since the market price of the stock was less than the exercise price during the period in the computation. In addition, 0.8 million restricted shares have not been considered in the diluted earnings per share calculation for the year ended December 31, 2013, as the effect would be anti-dilutive. For the year ended December 31, 2012, the effect of 0.3 million SARs have not been considered in the diluted earnings per share, since the market price of the stock was less than the exercise price during the period in the computation. In addition, 1.2 million restricted shares have not been considered in the diluted earnings per share calculation for the year ended December 31, 2012, as the effect would be anti-dilutive.
	The following tables set forth the computation of basic and diluted earnings per share:
		2014		2013		2012
	Basic:
	Net income attributable to ISG	$	6,178	$	4,776	$	603
	Weighted average common shares		37,086		36,810		36,205
	Earnings per share attributable to ISG	$	0.17	$	0.13	$	0.02
	Diluted:
	Net income attributable to ISG	$	6,178	$	4,776	$	603
	Interest expense of convertible debt, net of tax		80		108		46
	Net income, attributable to ISG, as adjusted	$	6,258	$	4,884	$	649
	Basic weighted average common shares		37,086		36,810		36,205
	Potential common shares		1,607		1,877		1,421
	Diluted weighted average common shares		38,693		38,687		37,626
	Diluted earnings per share attributable to ISG	$	0.16	$	0.13	$	0.02

ACCOUNTS_AND_UNBILLED_RECEIVAB

ACCOUNTS AND UNBILLED RECEIVABLES	12 Months Ended
	Dec. 31, 2014
ACCOUNTS AND UNBILLED RECEIVABLES
ACCOUNTS AND UNBILLED RECEIVABLES
	NOTE 5—ACCOUNTS AND UNBILLED RECEIVABLES
	Accounts and unbilled receivables, net of valuation allowance, consisted of the following:
		December 31,
		2014		2013
	Accounts receivable	$	29,000	$	27,011
	Unbilled receivables		12,014		11,471
	Receivables from related parties		134		206
		$	41,148	$	38,688

FURNITURE_FIXTURES_AND_EQUIPME

FURNITURE, FIXTURES AND EQUIPMENT	12 Months Ended
	Dec. 31, 2014
FURNITURE, FIXTURES AND EQUIPMENT
FURNITURE, FIXTURES AND EQUIPMENT
	NOTE 6—FURNITURE, FIXTURES AND EQUIPMENT
	Furniture, fixtures and equipment consisted of the following:
			December 31,
		Estimated
		Useful Lives	2014			2013
	Computer hardware, software and other office equipment	2 to 5 years	$	3,715		$	2,747
	Furniture, fixtures and leasehold improvements	2 to 5 years		1,240			995
	Internal-use software and development costs	3 to 5 years		4,666			4,046
	Accumulated depreciation			(6,143	)		(4,575	)
			$	3,478		$	3,213
	Depreciation expense was $1.8 million, $1.6 million and $1.7 million for the years ended December 31, 2014, 2013 and 2012, respectively.

INTANGIBLE_ASSETS

INTANGIBLE ASSETS	12 Months Ended
	Dec. 31, 2014
INTANGIBLE ASSETS
INTANGIBLE ASSETS
	NOTE 7—INTANGIBLE ASSETS
	The carrying amount of intangible assets, net of accumulated amortization and impairment charges, as of December 31, 2014 and 2013 consisted of the following:
		2014
		Gross		Acquisitions			Accumulated			Currency			Net Book
		Carrying					Amortization			impact			Value
		Amount
	Amortizable intangibles:
	Customer relationships	$	52,140	$	1,326		$	(37,091	)	$	(108	)	$	16,267
	Noncompete agreements		5,665		—			(5,633	)		—			32
	Software		1,500		83			(1,502	)		(18	)		63
	Backlog		4,880		122			(4,971	)		(14	)		17
	Databases		4,949		495			(4,111	)		(62	)		1,271
	Trademark and trade names		1,250		—			(565	)		—			685
	Intangibles	$	70,384	$	2,026		$	(53,873	)	$	(202	)	$	18,335
		2013
		Gross		Accumulated			Net Book
		Carrying		Amortization			Value
		Amount
	Amortizable intangibles:
	Customer relationships	$	52,140	$	(32,104	)	$	20,036
	Noncompete agreements		5,665		(5,603	)		62
	Software		1,500		(1,500	)		—
	Backlog		4,880		(4,880	)		—
	Databases		4,949		(3,817	)		1,132
	Trademark and trade names		1,250		(387	)		863
	Intangibles	$	70,384	$	(48,291	)	$	22,093
	Amortization expense was $5.6 million, $5.8 million and $7.2 million for the years ended December 31, 2014, 2013 and 2012, respectively. The estimated future amortization expense subsequent to December 31, 2014, is as follows:
	2015	$	5,041
	2016		4,736
	2017		4,353
	2018		1,171
	2019		960
	Thereafter		1,197
		$	17,458
	These estimates do not incorporate the impact that currency fluctuations may cause when translating the financial results of the Company's international operations that have amortizable intangible assets into U.S. dollars.

GOODWILL

GOODWILL	12 Months Ended
	Dec. 31, 2014
GOODWILL
GOODWILL
	NOTE 8—GOODWILL
	The changes in the carrying amount of goodwill for the year ended December 31, 2014 and 2013 is as follows:
		2014			2013
	Balance as of January 1
	Goodwill	$	164,959		$	164,959
	Accumulated impairment losses		(130,268	)		(130,268	)
			34,691			34,691
	Acquisitions		1,947
						—
	Foreign currency impact		(238	)		—
			1,709			—
	Balance as of December 31
	Goodwill		166,906			164,959
	Foreign currency impact		(238	)		—
	Accumulated impairment losses		(130,268	)		(130,268	)
		$	36,400		$	34,691

REDEEMABLE_NONCONTROLLING_INTE

REDEEMABLE NONCONTROLLING INTEREST	12 Months Ended
	Dec. 31, 2014
REDEEMABLE NONCONTROLLING INTEREST
Redeemable non controlling interest
	NOTE 9—REDEEMABLE NONCONTROLLING INTEREST
	The following provides a summary of activity in the noncontrolling interest account for the year ended December 31, 2014:
		2014
	Balance as of January 1, 2014	$	—
	Noncontrolling interest of CTP and Compass Italy		576
	Net income attributable to noncontrolling interest		126
	Accretion attributable to noncontrolling interest		45
	Balance as of December 31, 2014	$	747

ACCRUED_LIABILITIES

ACCRUED LIABILITIES	12 Months Ended
	Dec. 31, 2014
ACCRUED LIABILITIES
ACCRUED LIABILITIES
	NOTE 10—ACCRUED LIABILITIES
	The components of accrued liabilities at December 31, 2014 and 2013 are as follows:
		December 31,
		2014		2013
	Accrued payroll and vacation	$	4,307	$	10,406
	Accrued corporate and payroll related taxes		3,928		4,770
	Dividend payable		5,128		—
	Contingent consideration—current		2,364		1,640
	Other		5,389		4,373
		$	21,116	$	21,189

SHARE_REPURCHASE_PROGRAM

SHARE REPURCHASE PROGRAM	12 Months Ended
	Dec. 31, 2014
SHARE REPURCHASE PROGRAM
SHARE REPURCHASE PROGRAM
	NOTE 11—SHARE REPURCHASE PROGRAM
	Under a stock repurchase plan approved by the Board of Directors on October 16, 2007, the Company repurchased 15.9 million shares of common stock since that date. This program includes the repurchase of common shares, units and/or warrants. On November 14, 2007, the Board of Directors authorized an additional repurchase program of up to $15.0 million. On May 6, 2014, the Company's Board of Directors approved a new share repurchase authorization of up to $20 million. The new share repurchase program took effect upon completion of the Company's current program. As of December 31, 2014, there was $18.0 million available under this repurchase program. Share repurchases totaled $5.3 million, $4.1 million and $1.5 million for the years ended December 31, 2014, 2013 and 2012, respectively.

FINANCING_ARRANGEMENTS_AND_LON

FINANCING ARRANGEMENTS AND LONG-TERM DEBT	12 Months Ended
	Dec. 31, 2014
FINANCING ARRANGEMENTS AND LONG-TERM DEBT
FINANCING ARRANGEMENTS AND LONG-TERM DEBT
	NOTE 12—FINANCING ARRANGEMENTS AND LONG-TERM DEBT
	Long-term debt consists of the following:
			December 31,
			2014		2013
	Senior secured credit facility		$	49,938	$	53,312
	Compass convertible notes			3,434		3,434
				53,372		56,746
	Less current installments on long term debt			3,938		3,375
	Long-term debt		$	49,434	$	53,371
	Aggregate annual maturities of debt obligations by calendar year, are as follows:
			Debt
	2015		$	3,938
	2016			4,500
	2017			4,500
	2018			40,434
			$	53,372
	On November 16, 2007, our wholly-owned subsidiary International Consulting Acquisition Corp. ("ICAC") entered into a senior secured credit facility comprised of a $95.0 million term loan facility and a $10.0 million revolving credit facility (the "2007 Credit Agreement"). On November 16, 2007, ICAC borrowed $95.0 million under the term loan facility to finance a portion of the purchase price for our acquisition of TPI and to pay transaction costs. In connection with entering into a new credit facility on May 3, 2013, the Company repaid in full all obligations and liabilities owing under, and terminated, the 2007 Credit Agreement. No early termination penalties were incurred by the Company in connection with the termination of the 2007 Credit Agreement. As a result of this transaction, the Company recognized a loss of $0.4 million in the second quarter of 2013 relating to the write down of unamortized debt financing costs relating to the 2007 Credit Agreement. This amount was recorded in Gain on Extinguishment of Debt in the accompanying consolidated statement of comprehensive income (loss).
	On May 3, 2013 (the "Closing"), the Company entered into a five year senior secured credit facility (the "2013 Credit Agreement") comprised of a $45.0 million term loan facility and a $25.0 million revolving credit facility. On May 3, 2013, the Company borrowed $55.0 million under the 2013 Credit Agreement to refinance our existing debt under the 2007 Credit Agreement and to pay transaction costs. The material terms of the senior secured credit facility under the 2013 Credit Agreement are as follows:
	•	Each of the term loan facility and revolving credit facility has a maturity date of five years from the Closing.
	•	The credit facility is secured by all of the equity interests owned by the Company, and its direct and indirect domestic subsidiaries and, subject to agreed exceptions, the Company's direct and indirect "first-tier" foreign subsidiaries and a perfected first priority security interest in all of the Company's direct and indirect domestic subsidiaries' tangible and intangible assets.
	•	The Company's direct and indirect existing and future wholly-owned domestic subsidiaries serve as guarantors to the Company's obligations under the senior secured facility.
	•	At the Company's option, the credit facility bears interest at a rate per annum equal to either (i) the "Base Rate" (which is the highest of (a) the rate publicly announced from time to time by the administrative agent as its "prime rate", (b) the Federal Funds Rate plus 0.5% per annum and (c) the Eurodollar Rate, plus 1.0%), plus the applicable margin (as defined below) or (ii) Eurodollar Rate (adjusted for maximum reserves) as determined by the Administrative Agent, plus the applicable margin. The applicable margin is adjusted quarterly based upon the Company's quarterly leverage ratio. Prior to the end of the first full quarter following the closing of the credit facility, the applicable margin was required to be a percentage per annum equal to 2.5% for the term loans and the revolving loans maintained as Base Rate loans or 3.5% for the term loans and revolving loans maintained as Eurodollar loans.
	•	The Term Loan is repayable in eight consecutive quarterly installments of $843,750 each, commencing September 30, 2013, followed by eleven consecutive quarterly installments in the amount of $1,125,000 each, commencing September 30, 2015, and a final payment of the outstanding principal amount of the Term Loan on the maturity date.
	•	Mandatory repayments of term loans shall be required from (subject to agreed exceptions) (i) 100% of the proceeds from asset sales by the Company and its subsidiaries, (ii) 100% of the net proceeds from issuances of debt and equity by the Company and its subsidiaries, and (iii) 100% of the net proceeds from insurance recovery and condemnation events of the Company and its subsidiaries.
	•	The senior secured credit facility contains a number of covenants that, among other things, place restrictions on matters customarily restricted in senior secured credit facilities, including restrictions on indebtedness (including guarantee obligations), liens, fundamental changes, sales or disposition of property or assets, investments (including loans, advances, guarantees and acquisitions), transaction with affiliates, dividends and other payments in respect of capital stock, optional payments and modifications of other material debt instruments, negative pledges and agreements restricting subsidiary distributions and changes in line of business. In addition, the Company is required to comply with a total leverage ratio and fixed charge coverage ratio. As of December 31, 2014, our maximum total leverage ratio was 3.50 to 1.00 and we were in compliance with all covenants contained in the 2013 Credit Agreement.
	•	The senior secured credit facility contains customary events of default, including cross-default to other material agreements, judgment default and change of control.
	We are required under the 2013 Credit Agreement to establish a fixed or maximum interest rate covering a notional amount of not less than 50% of the aggregate outstanding indebtedness for borrowed money (other than the total revolving outstanding) for a period of three years from the closing date of our 2013 Credit Agreement. Subsequent to May 3, 2013, we entered into an agreement to cap the interest rate at 5% on the LIBOR component of our borrowings under the term loan facility until May 3, 2016. This interest rate cap is not designated for hedging or speculative purposes. The expense related to this interest rate cap was nominal.
	As of December 31, 2014, the total principal outstanding under the term loan facility and revolving credit facility was $39.9 million and $10.0 million, respectively. Additional mandatory principal repayments totaling $3.9 million and $4.5 million will be due in 2015 and 2016, respectively.
	Compass Convertible Notes
	On January 4, 2011, as part of the consideration for the acquisition of Compass, we issued an aggregate of $6.3 million in convertible notes to Compass (the "Notes"). The Notes mature on January 4, 2018 and interest is payable on the outstanding principal amount, computed daily, at the rate of 3.875% per annum on January 31 of each calendar year and on the seventh anniversary of the date of the Notes. The Notes were subject to transfer restrictions until January 31, 2013. If the price of our common stock on the Nasdaq Global Market exceeds $4 per share for 60 consecutive trading days (the "Trigger Event"), the holder of the Notes may convert all (but not less than all) of the outstanding principal amount of the Notes into shares of our common stock at the rate of 1 share for every $4 in principal amount outstanding. After the Trigger Event, we may prepay all or any portion of the outstanding principal amount of the Notes by giving the holder 30 days written notice.
	On April 26, 2013, the Company settled a portion of the Notes. The payee agreed to accept from the Company an amount equal to $650,000 as satisfaction in full of all indebtedness of $1.1 million owing by the Company to such payee. As a result of this transaction, the Company recognized a gain of $0.5 million in the second quarter of 2013 representing the difference between the fair value of the consideration issued in the settlement transaction and the carrying value of the amounts due to the payee. This amount was recorded in Gain on Extinguishment of Debt in the accompanying consolidated statement of comprehensive income (loss).
	On November 14, 2013, our lenders agreed to amend the 2013 Credit Agreement to allow the Company to prepay the entire outstanding principal amount of the CPIV S.A. Convertible Note ("CPIV Note") plus accrued interest and exclude the CPIV Note prepayment from the calculation of our consolidated fixed charge coverage ratio. On November 25, 2013, the Company prepaid the CPIV Note and the payee agreed to accept from the Company an amount equal to the principal of $1.7 million plus accrued interest as satisfaction in full of all indebtedness owing by the Company to such payee. Therefore, there was no gain or loss recorded as a result of this transaction.

COMMITMENTS_AND_CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	12 Months Ended
	Dec. 31, 2014
COMMITMENTS AND CONTINGENCIES
COMMITMENTS AND CONTINGENCIES
	NOTE 13—COMMITMENTS AND CONTINGENCIES
	The Company is involved in certain legal proceedings arising in the ordinary course of business. Management, after review and consultation with legal counsel, believes the ultimate success of parties of the legal proceedings is remote and the ultimate aggregate liability, if any, resulting from such proceedings will not be material to the financial position of the Company.
	Employee Retirement Plans
	The Company's TPI subsidiary maintains a qualified profit-sharing plan (the "Plan"). The annual contribution for 2014 is 3% of total cash compensation or $7,800, whichever is less. Employees are generally eligible to participate in the Plan after six months of service and are 100% vested upon entering the Plan. For the years ended December 31, 2014, 2013 and 2012, $1.6 million, $1.6 million and $1.6 million were contributed to the Plan by the Company, respectively.
	Leases
	The Company leases its office space under long-term operating lease agreements which expire at various dates through August 2021. Under the operating leases, the Company pays certain operating expenses relating to the leased property and monthly base rent.
	Aggregate future minimum payments under noncancelable leases with initial or remaining terms of one year or more consist of the following at December 31, 2014:
		Operating
		Leases
	2015	$	2,343
	2016		1,778
	2017		1,125
	2018		536
	2019		253
	Thereafter		423
	Total minimum lease payments	$	6,458
	The Company's rental expense for operating leases was $3.6 million, $3.2 million and $3.0 million, in 2014, 2013 and 2012, respectively.
	STA Consulting Contingent Consideration
	The Company expects to pay $1.7 in the first quarter of 2015 related to 2014 performance and the remaining contingent liability in the first quarter of 2016. The Company also increased the contingent consideration liability by $0.5 million for the year ended December 31, 2014, based on the latest estimates of future profit level due to completion of new projects.
	CCI Contingent Consideration
	As of December 31, 2014, we have recorded a liability of $1.9 million representing the estimated fair value of contingent consideration related to the acquisition of CCI Consulting, of which $0.7 million is classified as current and included in accrued expenses on the consolidated balance sheet.

RELATED_PARTY_TRANSACTIONS

RELATED PARTY TRANSACTIONS	12 Months Ended
	Dec. 31, 2014
RELATED PARTY TRANSACTIONS
RELATED PARTY TRANSACTIONS
	NOTE 14—RELATED PARTY TRANSACTIONS
	From time to time, the Company may have receivables and payables with employees and shareholders. All related party transactions have been conducted in the normal course of business as if the parties were unrelated. As of December 31, 2014 and 2013, the Company had outstanding receivables from related parties, including shareholders, totaling $0.1 million and $0.2 million, respectively, and no outstanding payables. These transactions related to personal withholding taxes paid on behalf of expatriate employees.

INCOME_TAXES

INCOME TAXES	12 Months Ended
	Dec. 31, 2014
INCOME TAXES
INCOME TAXES
	NOTE 15—INCOME TAXES
	The components of income before income taxes for the years ended December 31, 2014, 2013 and 2012 consists of the following:
		Years Ended December 31,
		2014			2013			2012
	Domestic	$	5,208		$	3,913		$	2,104
	Foreign		5,260			5,130			1,136
	Total income before income taxes	$	10,468		$	9,043		$	3,240
	The components of the 2014, 2013 and 2012 income tax provision are as follows:
		Years Ended December 31,
		2014			2013			2012
	Current:
	Federal	$	3,535		$	3,917		$	3,330
	State		478			339			862
	Foreign		1,940			1,825			1,088
	Total current provision		5,953			6,081			5,280
	Deferred:
	Federal		(1,477	)		(1,609	)		(1,824	)
	State		(102	)		(86	)		(503	)
	Foreign		(210	)		(119	)		(316	)
	Total deferred benefit		(1,789	)		(1,814	)		(2,643	)
	Total	$	4,164		$	4,267		$	2,637
	The differences between the effective tax rates reflected in the total provision for income taxes and the U.S. federal statutory rate of 35% for the year ended December 31, 2014, 2013 and 2012 were as follows:
		Years Ended December 31,
		2014			2013			2012
	Tax provision (benefit) computed at 35%	$	3,664		$	3,165		$	1,134
	Nondeductible expenses		406			541			158
	State income taxes, net of federal benefit		258			145			94
	Derecognition of stock compensation deferred tax asset		—			—			451
	Tax impact of foreign operations		(138	)		518			784
	Other		(26	)		(102	)		16
	Income tax provision	$	4,164		$	4,267		$	2,637
	Effective income tax rates		39.8	%		47.2	%		81.4	%
	The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and liabilities were as follows:
		December 31,			December 31,
		2014			2013
	Current deferred tax asset
	Compensation related expenses	$	1,266		$	456
	Valuation allowance for deferred tax assets		(461	)		(432	)
	Accruals and reserves		639			1,058
	Total current deferred tax asset		1,444			1,082
	Current deferred tax liability
	Prepaids		(306	)		(257	)
	Total current deferred tax liability		(306	)		(257	)
	Net current deferred tax asset	$	1,138		$	825
	Noncurrent deferred tax asset
	Compensation related expenses	$	907		$	1,006
	Foreign currency translation		2,629			1,500
	Foreign tax credit carryovers		1,861			1,739
	Foreign net operating loss carryovers		4,442			5,102
	U.S. net operating loss carryovers		368			368
	Other		392			333
	Valuation allowance for deferred tax assets		(5,233	)		(5,862	)
	Total noncurrent deferred tax asset		5,366			4,186
	Noncurrent deferred tax liability
	Depreciable assets		(165	)		(239	)
	Intangible assets		(3,388	)		(5,158	)
	Investment in foreign subsidiaries		(1,182	)		(1,221	)
	Total noncurrent deferred tax liability		(4,735	)		(6,618	)
	Net noncurrent deferred tax asset (liability)		631			(2,432	)
	Net deferred tax asset (liability)	$	1,769		$	(1,607	)
	A valuation allowance was established at December 31, 2014 and 2013 due to estimates of future utilization of net operating loss carryovers in the U.S. and certain foreign jurisdictions, derived primarily from acquisitions and recorded through purchase accounting. The valuation allowance at December 31, 2014 also primarily includes a full valuation for the Company's foreign tax credit carryovers and foreign taxes on its controlled foreign corporation.
	Uncertain tax positions
	Benefits from tax positions should be recognized in the financial statements only when it is more likely than not that the tax position will be sustained upon examination by the appropriate taxing authority that would have full knowledge of all relevant information. A tax position that meets the more-likely-than-not recognition threshold is measured at the largest amount of benefit that is greater than fifty percent likely of being realized upon ultimate settlement. Tax positions that previously failed to meet the more-likely-than-not recognition threshold should be recognized in the first subsequent financial reporting period in which that threshold is met. Previously recognized tax positions that no longer meet the more-likely-than-not recognition threshold should be derecognized in the first subsequent financial reporting period in which that threshold is no longer met. It is the Company's policy to accrue for interest and penalties related to its uncertain tax positions within income tax expense.
A tabular reconciliation of the total amounts of unrecognized tax benefits at the beginning and end of the period is as follows:
	December 31,
	2014			2013			2012
Balance, beginning of year	$	2,288		$	2,470		$	2,087
Reductions as a result of tax positions taken during a prior period		—			(139	)		—
Additions as a result of tax positions taken during the current period		146			110			383
Reductions as a result of settlement with tax authorities		—			(139	)		—
Reductions as a result of lapse of statute		(242	)		(14	)		—
Balance, end of year	$	2,192		$	2,288		$	2,470
We do not expect our unrecognized tax benefits to significantly change in the next twelve months.
The Company has recognized through income tax expense approximately $0.5 million of interest and penalties related to uncertain tax positions. The amount of unrecognized tax benefit, if recognized, that would impact the effective tax rate is $2.2 million. The Company has entered into indemnification arrangements totaling $0.8 million to reduce the net economic impact of its uncertain tax positions. With few exceptions, the Company is no longer subject to U.S. federal, state, local, or non-U.S. income tax examinations by tax authorities for years before 2008.

STOCK_BASED_COMPENSATION_PLANS

STOCK BASED COMPENSATION PLANS	12 Months Ended
	Dec. 31, 2014
STOCK BASED COMPENSATION
STOCK BASED COMPENSATION
	NOTE 16—STOCK-BASED COMPENSATION PLANS
	The Amended and Restated 2007 Equity and Incentive Award Plan ("Incentive Plan") and Amended and Restated 2007 Employee Stock Purchase Plan ("ESPP") were approved by the Company's stockholders. Subject to the term of the Incentive Plan, the Incentive Plan authorizes the grant of awards, which awards may be made in the form of (i) nonqualified stock options; (ii) stock options intended to qualify as incentive stock options under Section 422 of the Internal Revenue Code (stock options described in clause (i) and (ii), "options"); (iii) stock appreciation rights ("SARs"); (iv) restricted stock and/or restricted stock units; (v) other stock based awards; (vi) performance-based awards, which are equity awards or incentive awards intended to qualify for full tax deductibility by the Company under Code Section 162(m); and (vii) incentive awards, a cash-denominated award earnable by achievement of performance goals. The issuance of shares or the payment of cash upon the exercise of an award or in consideration of the cancellation or termination of an award shall reduce the total number of shares available under the equity incentive plan, as applicable. The provisions of each award will vary based on the type of award granted and will be specified by the Compensation Committee of the Board of Directors. Those awards which are based on a specific contractual term will be granted with a term not to exceed ten years. The SARs granted under the Incentive Plan are granted with an exercise price equal to the fair market value of the Common Shares at the time the SARs are granted.
	As of December 31, 2014, there were 4,613,444 and 1,186,421 shares available for grant under the amended and restated Incentive Plan and ESPP, respectively.
	The Company recognized $3.1 million, $3.4 million and $2.8 million in employee stock-based compensation expense during the years ended December 31, 2014, 2013 and 2012, respectively. This expense was recorded in selling, general and administrative in the consolidated statement of comprehensive income.
	Stock Appreciation Rights
	The Compensation Committee may grant (i) a stock appreciation right independent of an option or (ii) a stock appreciation right in connection with an option, or a portion thereof. A stock appreciation right granted pursuant to clause (ii) of the preceding sentence (A) may be granted at the time the related option is granted or at any time prior to the exercise or cancellation of the related option, (B) shall cover the same number of shares covered by an option (or such lesser number of shares as the Compensation Committee may determine) and (C) shall be subject to the same terms and conditions as such option except for such additional limitations as are contemplated above (or such additional limitations as may be included in an award agreement).
	SARs granted pursuant to the Incentive Plan are granted with an exercise price equal to the fair market value of the Common Shares at the time the SARs are granted. Pursuant to the applicable award agreements, the SARs vest and become exercisable with respect to 25% of the shares subject to the SARs on the first four anniversaries of the grant date, so long as the employee remains employed with the Company on each such date. If the employee's employment with the Company is terminated as a result of the employee's death or disability, all unvested SARs will be fully vested. If the employee retires, the SARs will continue to vest on the same schedule as if the employee had remained employed with the Company. Any vested SARs will expire upon the earliest to occur of the following: (i) the tenth anniversary of the grant date; (ii) one year following the date of the employee's termination of services as a result of death or permanent disability; (iii) 90 days following the fourth anniversary of the grant date, following the participant's retirement; (iv) 30 days following the date of the participant's termination of employment for any reason (other than as a result of death, disability or retirement); and (v) immediately upon a termination for cause. SARs will be settled in the form of shares of the Company's common stock upon exercise.
	A summary of the status of the Company's SARs issued under its Incentive Plan is presented below:
			SARs			Weighted-Average		Weighted-Average		Aggregate
						Exercise Price		Remaining		Intrinsic
								Contractual		Value
								Life
								(in years)
	Outstanding at December 31, 2011			396		$	5.04		6.5	$	—
	Granted			—		$	—
	Exercised			—		$	—
	Forfeited			(131	)	$	5.29
	Outstanding at December 31, 2012			265		$	4.92		5.5	$	—
	Granted			—		$	—
	Exercised			(45	)	$	3.18			$	45
	Forfeited			(88	)	$	5.27
	Outstanding at December 31, 2013			132		$	5.28		4.4	$	67
	Granted			—		$	—
	Exercised			(13	)	$	3.18			$	22
	Forfeited			(13	)	$	3.18			$	22
	Outstanding at December 31, 2014			106		$	5.78		3.3	$	39
	Vested and expected to vest at December 31, 2014			106		$	5.78		3.3	$	39
	Exercisable at December 31, 2014			106		$	5.78		3.3	$	39
	The Company did not grant any SAR during the years end December 31, 2014, 2013 and 2012, respectively. The total fair value of the SARs vested during the years ended December 31, 2014, 2013 and 2012 was $0, $6,000 and $0.1 million, respectively. As of December 31, 2014, all of the compensation costs related to the Company's vested SARs have been recognized.
	The Company uses the Black-Scholes option pricing model to determine the fair value of each SAR award on the date of grant. The estimated fair value of the SARs is amortized to expense on a straight-line basis over the vesting period.
	The volatility calculation was based on our most recent trading day average. The risk-free interest rate is determined based upon the interest rate on a U.S. Treasury Bill with a term equal to the expected life of the SARs at the time the SARs was granted. An expected life of five years was taken into account for purposes of assigning a fair value to the SARs. The expected life represents the period of time the awards granted are expected to be outstanding. The Company has not issued any stock options from the inception through December 31, 2014.
	Restricted Share Awards/Units
	The Incentive Plan provides for the granting of restricted share awards ("RSA") or restricted share units ("RSU"), the vesting of which is subject to conditions and limitations established at the time of the grant. Upon the grant of an RSA, the participant has the rights of a shareholder, including but not limited to the right to vote such shares and the right to receive any dividends paid on such shares. Recipients of RSU awards will not have the rights of a shareholder of the Company until such date as the Common Shares are issued or transferred to the recipient. If the employee retires (at the normal retirement age stated in the applicable retirement plan or applicable law, if there is a mandatory retirement age), the restricted shares continue to vest on the same schedule as if the employee remained employed with the Company. Upon a change in control, or upon a termination of employment due to employee's death or permanent disability, the restricted shares become 100% vested. Dividends accrue and will be paid if and when the restricted shares vest.
	The Company also granted RSUs to specific employees which have the following characteristics:
	•	Performance-Based RSU Vesting (EBITDA):  Provided the employee continues to be employed through April 1, 2016, the RSUs will vest on such date if specific 2015 financial performance is met, otherwise the RSUs will be forfeited.
	•	Time-Based RSU Vesting:  So long as the employee continues to be employed through the fourth anniversary of the grant date, the RSUs will become 100% vested on such date.
	•	Performance-Based RSU Vesting (Stock Price):  On July 1 and August 1, 2013, the Company granted 804,000 and 75,000 RSUs with grant date prices of $1.90 and $2.72, respectively. These RSUs contained a market condition that should the closing price of ISG shares meet or exceed $3.50 for three consecutive trading days, 100% of the RSUs would vest immediately at that time. The Company assessed the fair value of the awards on the grant date utilizing a lattice model. The weighted-average grant date fair value per market-based share for these awards granted was computed using the Monte Carlo pricing model using the following assumptions:
	Expected term of award			4 years
	Risk-free interest rate			1.10	%
	Expected volatility			50	%
	The expected term of the awards was based on the requisite service period. The risk-free interest rate was based on the U.S Treasury Bill in effect at the time of grant for four years. The expected volatility was based on our historical volatility.
	All RSUs under the July 1 and August 1, 2013 grants have vested since the market condition was achieved during the quarter ended September 30, 2013. As a result, the Company recorded $1.7 million of stock compensation expense in selling, general and administrative in the accompanying consolidated statement of comprehensive income (loss).
	If an employee's employment is terminated (i) at any time during the vesting period due to the employee's death, disability or retirement prior to the applicable vesting date or (ii) without cause by the Company after 50% of the relevant period has elapsed, then the RSUs will vest prorata based on the period of time worked relative to such period. However, no shares will be distributed until the applicable pro rata vesting date (and, in the case of the Performance-Based RSUs, only if and to the extent that the performance target is achieved). In all other terminations occurring prior to the applicable vesting date, the RSUs will expire. Pursuant to the terms of the Incentive Plan, in the event of a change in control, the Compensation Committee of the Board of Directors may accelerate vesting of the outstanding awards then held by participants. All RSUs will be payable in shares of the Company's common stock immediately upon vesting. No dividend equivalents will be paid with respect to any RSUs.
	The fair value of RSAs and RSUs is determined based on the closing price of the Company's shares on the grant date. The total fair value is amortized to expense on a straight-line basis over the vesting period. There has been no activities for RSAs since December 31, 2011.
	A summary of the status of the Company's RSUs issued under its Incentive Plan as of December 31, 2014 and changes during the year then ended, is presented below:
			RSU			Weighted-Average
						Grant Date
						Fair Value
	Non-vested at December 31, 2011			2,658		$	2.26
	Granted			1,057		$	1.21
	Vested			(1,033	)	$	2.49
	Forfeited			(334	)	$	2.12
	Non-vested at December 31, 2012			2,348		$	1.71
	Granted			1,578		$	2.31
	Vested			(2,045	)	$	1.85
	Forfeited			(254	)	$	1.68
	Non-vested at December 31, 2013			1,627		$	2.13
	Granted			1,729		$	4.56
	Vested			(689	)	$	2.03
	Forfeited			(31	)	$	3.23
	Non-vested at December 31, 2014			2,636		$	3.73
	The total fair value of RSUs vested during the years ended December 31, 2014, 2013 and 2012 was $1.4 million, $3.8 million and $2.6 million, respectively. As of December 31, 2014, there was $6.1 million of unrecognized compensation cost related to RSUs, which is expected to be recognized over a weighted-average period of 2.8 years.
	Employee Stock Purchase Plan
The Company uses the Black-Scholes option pricing model to estimate the fair value of shares expected to be issued under the Company's employee stock purchase plan. The ESPP provides that a total of 1.2 million shares of Common Stock are reserved for issuance under the plan. The ESPP, which is intended to qualify as an "employee stock purchase plan" under Section 423 of the Internal Revenue Code, is implemented utilizing three-month offerings with purchases occurring at three-month intervals. The ESPP administration is overseen by the Company's Compensation Committee. Employees are eligible to participate if they are employed by the Company for at least 20 hours per week and more than five months in a calendar year. The ESPP permits eligible employees to purchase Common Stock through payroll deductions, ranging from one to ten percent of their eligible earnings subject to IRS regulated cap of $25,000. The price of Common Stock purchased under the ESPP is 90% of the fair market value of the Common Stock on the applicable purchase date. Employees may end their participation in an offering at any time during the offering period, and participation ends automatically upon termination of employment. The Compensation Committee may at any time amend or terminate the ESPP, except that no such amendment or termination may adversely affect shares previously granted under the ESPP. The Company may issue new shares for the ESPP using treasury shares or newly issued shares.
For the year ended December 31, 2014, the Company issued 150,095 shares for the ESPP. There were 1,186,421 shares available for purchase at December 31, 2014 under the ESPP.

SEGMENT_AND_GEOGRAPHICAL_INFOR

SEGMENT AND GEOGRAPHICAL INFORMATION	12 Months Ended
	Dec. 31, 2014
SEGMENT AND GEOGRAPHICAL INFORMATION
SEGMENT AND GEOGRAPHICAL INFORMATION
	NOTE 17—SEGMENT AND GEOGRAPHICAL INFORMATION
	The Company operates in one segment, fact-based sourcing advisory services. The Company operates principally in the Americas, Europe, and Asia Pacific. The Company's foreign operations are subject to local government regulations and to the economic and political uncertainties of those areas.
	Geographical information for the segment is as follows:
			Years Ended December 31,
			2014		2013		2012
	Revenues
	Americas(1)		$	105,915	$	114,603	$	104,925
	Europe(2)			84,107		75,127		62,671
	Asia Pacific(3)			19,595		21,252		25,149
			$	209,617	$	210,982	$	192,745
	Identifiable long-lived assets
	Americas		$	2,131	$	2,064	$	1,893
	Europe			1,130		912		931
	Asia Pacific			217		237		250
			$	3,478	$	3,213	$	3,074
	-1	Substantially all relates to operations in the United States.
	-2	Includes revenues from operations in Germany of $31.8 million, $30.1 million and $28.3 million in 2014, 2013 and 2012, respectively. Includes revenues from operations in the United Kingdom of $19.9 million, $19.9 million and $14.1 million in 2014, 2013 and 2012, respectively.
	-3	Includes revenues from operations in Australia of $14.3 million, $16.1 million and $18.0 million in 2014, 2013 and 2012, respectively.
	The segregation of revenues by geographic region is based upon the location of the legal entity performing the services. The Company does not measure or monitor gross profit or operating income by geography or any other measure or metric, other than consolidated, for the purposes of making operating decisions or allocating resources.

UNAUDITED_QUARTERLY_INFORMATIO

UNAUDITED QUARTERLY INFORMATION	12 Months Ended
	Dec. 31, 2014
UNAUDITED QUARTERLY INFORMATION
UNAUDITED QUARTERLY INFORMATION
	NOTE 18—UNAUDITED QUARTERLY INFORMATION
		Quarters Ended
		March 31,			June 30,			September 30,			December 31,
		2014			2014			2014			2014
	Fiscal 2014:
	Net sales	$	48,241		$	54,888		$	53,258		$	53,230
	Gross profit	$	18,429		$	23,391		$	21,771		$	21,894
	Operating income	$	1,036		$	4,524		$	3,772		$	3,346
	Other expense, net	$	(530	)	$	(374	)	$	(574	)	$	(732	)
	Income from operations	$	506		$	4,150		$	3,198		$	2,614
	Net income attributable to ISG	$	63		$	3,105		$	2,353		$	657
	Basic earnings per share attributable to ISG		0			0.08			0.06			0.02
		$			$			$			$
	Diluted earnings per share attributable to ISG	$	0		$	0.08		$	0.06		$	0.02
	Basic weighted average common shares attributable to ISG		37,383			37,220			37,039			36,702
	Diluted weighted average common shares attributable to ISG		38,861			38,837			38,740			38,333
		Quarters Ended
		March 31,			June 30,			September 30,			December 31,
		2013			2013			2013			2013
	Fiscal 2013:
	Net sales	$	50,588		$	55,583		$	51,371		$	53,440
	Gross profit	$	20,556		$	23,881		$	20,638		$	21,922
	Operating income	$	2,610		$	4,307		$	1,797		$	2,987
	Other expense, net	$	(674	)	$	(672	)	$	(686	)	$	(626	)
	Income from operations	$	1,936		$	3,635		$	1,111		$	2,361
	Net income	$	969		$	2,439		$	411		$	957
	Basic earnings per share		0.03			0.07			0.01			0.03
		$			$			$			$
	Diluted earnings per share	$	0.03		$	0.06		$	0.01		$	0.03
	Basic weighted average common shares		36,632			36,756			36,781			37,071
	Diluted weighted average common shares		38,794			38,512			38,830			38,614

SCHEDULE_II_VALUATION_AND_QUAL

SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS	12 Months Ended
	Dec. 31, 2014
SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS
SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS
	INFORMATION SERVICES GROUP, INC.
	SCHEDULE II—VALUATION AND QUALIFYING ACCOUNTS
	(in thousands)
	Description	Balance at		Balance		Charges to			Additions/			Balance at
		Beginning		Assumed in		Costs and			(Deductions)			End of
		of Period		Acquisitions		Expenses						Period
	Year ended December 31, 2014:
	Allowance for doubtful accounts	$	352		—		(100	)		(18	)	$	234
	Allowance for tax valuation	$	6,294		—		150			(750	)	$	5,694
	Year ended December 31, 2013:
	Allowance for doubtful accounts	$	395		—		49			(92	)	$	352
	Allowance for tax valuation	$	5,039		—		997			258		$	6,294
	Year ended December 31, 2012:
	Allowance for doubtful accounts	$	549		—		297			(451	)	$	395
	Allowance for tax valuation	$	9,026		—		784			(4,771	)	$	5,039

SUMMARY_OF_SIGNIFICANT_ACCOUNT1

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	12 Months Ended
	Dec. 31, 2014
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Basis of Presentation and Principles of Consolidation
	Basis of Presentation and Principles of Consolidation
	The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. These consolidated financial statements and footnotes are presented in accordance with accounting principles generally accepted in the United States of America ("GAAP"). All intercompany accounts and transactions have been eliminated in consolidation. Unless the context requires otherwise, references to the Company include ISG and its consolidated subsidiaries.
Use of Estimates
	Use of Estimates
	The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements and revenues and expenses during the periods reported. Actual results may differ from those estimates. The complexity of the estimation process and issues related to the assumptions, risks and uncertainties inherent in the application of the proportional performance method of accounting affect the amounts of revenues, expenses, unbilled receivables and deferred revenue. Numerous internal and external factors can affect estimates. Estimates are also used for but not limited to: allowance for doubtful accounts, useful lives of furniture, fixtures and equipment and definite-lived intangible assets, depreciation expense, fair value assumptions in analyzing goodwill and intangible asset impairments, income taxes and deferred tax asset valuation, and the valuation of stock based compensation.
Business Combinations
	Business Combinations
	We have acquired businesses critical to the Company's long-term growth strategy. Results of operations for acquisitions are included in the accompanying consolidated statement of comprehensive income from the date of acquisition. Acquisitions are accounted for using the purchase method of accounting and the purchase price is allocated to the net assets acquired based upon their estimated fair values at the date of acquisition. The excess of the purchase price over the net assets was recorded as goodwill. Final valuations of assets and liabilities are obtained and recorded within one year from the date of the acquisition. We recorded a bargain purchase gain of approximately $0.1 million for the year ended December 31, 2014. This gain relates to the newly acquired shares of CTP. This gain resulted as the fair value of the net assets acquired exceeded the consideration transferred.
Cash and Cash Equivalents
	Cash and Cash Equivalents
	The Company considers all highly liquid instruments with an original maturity of three months or less to be cash equivalents, including certain money market accounts. The Company principally maintains its cash in money market and bank deposit accounts in the United States of America which typically exceed applicable insurance limits. The Company believes it is not exposed to any significant credit risk on cash and cash equivalents.
Restricted Cash
	Restricted Cash
	Restricted cash consists of cash and cash equivalents which the Company has pledged to fulfill certain obligations and are not available for general corporate purposes.
Accounts and Unbilled Receivables and Allowance for Doubtful Accounts
	Accounts and Unbilled Receivables and Allowance for Doubtful Accounts
	Our trade receivables primarily consist of amounts due for services already performed via fixed fee or time and materials arrangements. The Company maintains an allowance for doubtful accounts for estimated losses resulting from the inability of clients to pay fees or for disputes that affect its ability to fully collect billed accounts receivable. The allowance for these risks is prepared by reviewing the status of all accounts and recording reserves on a specific identification method based on previous experiences and historical bad debts. However, our actual experience may vary significantly from these estimates. If the financial condition of our clients were to deteriorate, resulting in their inability or unwillingness to pay their invoices, we may need to record additional allowances or write-offs in future periods. To the extent the provision relates to a client's inability or unwillingness to make required payments, the provision is recorded as bad debt expense, which is classified within selling, general and administrative expense in the accompanying consolidated statement of comprehensive income.
	The provision for unbilled services is recorded as a reduction to revenues to the extent the provision relates to fee adjustments and other discretionary pricing adjustments.
Prepaid Expenses and Other Assets
	Prepaid Expenses and Other Assets
	Prepaid expenses and other assets consist primarily of prepaid expenses for insurance, conferences and deposits for facilities, programs and promotion items.
Furniture, Fixtures and Equipment, net
	Furniture, Fixtures and Equipment, net
	Furniture, fixtures and equipment is recorded at cost. Depreciation is computed by applying the straight-line method over the estimated useful life of the assets, which ranges from three to five years. Leasehold improvements are depreciated over the lesser of the useful life of the underlying asset or the lease term, which generally range from three to five years. Expenditures for renewals and betterments are capitalized. Repairs and maintenance are charged to expense as incurred. The cost and accumulated depreciation of assets sold or otherwise disposed of are removed from the accounts and any associated gain or loss thereon is reflected in the accompanying consolidated statement of comprehensive income.
Internal-Use Software and Website Development Costs
	Internal-Use Software and Website Development Costs
	The Company capitalizes internal-use software and website development costs and records these amounts within furniture, fixtures and equipment. Accounting standards require that certain costs related to the development or purchase of internal-use software and systems as well as the costs incurred in the application development stage related to its website be capitalized and amortized over the estimated useful life of the software or system. They also require that costs related to the preliminary project stage, data conversion and post implementation/operation stage of an internal-use software development project be expensed as incurred.
	During the years ended December 31, 2014, 2013 and 2012, the Company capitalized $0.6 million, $0.7 million and $0.6 million, respectively, of costs associated with the system conversion and website development.
Goodwill
	Goodwill
	Our goodwill represents the excess of the cost of businesses acquired over the fair value of the net assets acquired at the date of acquisition. Goodwill is not amortized but rather tested for impairment at least annually by applying a fair-value based test in accordance with accounting and disclosure requirements for goodwill and other indefinite-lived intangible assets. This test is performed by us during our fourth fiscal quarter or more frequently if we believe impairment indicators are present.
	We performed step one of a two-step impairment test on goodwill. Step one compares the fair value of the reporting unit to its carrying amount, including goodwill. If the carrying value of the reporting unit exceeds the fair value of the reporting unit, then we must perform the second step of the impairment test whereby the carrying value of the reporting unit's goodwill is compared to its implied fair value. If the carrying value of the goodwill exceeds the implied fair value, an impairment loss equal to the difference is recorded.
	In performing the first step of the impairment test on goodwill, we determined the fair value of the reporting unit using both a market and income approach. The income approach utilizes a discounted cash flow model and is based on projections of future operations of the reporting unit as of the valuation date. The market approach is based on our stock price and provides a direct indication of fair value. Under the market approach, we determined the fair value of the reporting unit utilizing a relevant average of our common stock price for the October 31 measurement period, as quoted on the Nasdaq Global Market plus a 35% control premium based upon recent transactions of comparable companies. The discounted cash flow model assumed revenue growth rates of approximately 3% per year. We employed a discount rate of 13.5% to discount future excess cash flows. As a result of the step one test performed, the fair value of our reporting unit substantially exceeded the carrying value. Therefore, step two was not performed or required.
Long-Lived Assets
	Long-Lived Assets
	Long-lived assets, excluding goodwill and indefinite-lived intangibles, to be held and used by the Company are reviewed to determine whether any significant change in the long-lived asset's physical condition, a change in industry conditions or a reduction in cash flows associated with the use of the long-lived asset. If these or other factors indicate the carrying amount of the asset may not be recoverable, the Company determines whether impairment has occurred through the use of an undiscounted cash flow analysis of the asset at the lowest level for which identifiable cash flows exist. If impairment has occurred, the Company recognizes a loss for the difference between the carrying amount and the fair value of the asset. The fair value of the asset is measured using market prices or, in the absence of market prices, an estimate of discounted cash flows. Cash flows are generally discounted at an interest rate commensurate with our weighted average cost of capital for a similar asset. Assets are classified as held for sale when the Company has a plan for disposal of certain assets and those assets meet the held for sale criteria of accounting and disclosure requirement for the impairment or disposal of long-lived assets.
Debt Issuance Costs
	Debt Issuance Costs
	Costs directly incurred in obtaining long-term financing, typically bank and attorney fees, are deferred and are amortized over the life of the related loan using the effective interest method. Deferred issuance costs are classified as other assets in the accompanying consolidated balance sheet. Amortization of debt issuance costs is included in interest expense and totaled $0.2 million, $0.2 million and $0.4 million for the years ended December 31, 2014, 2013 and 2012, respectively.
Revenue Recognition
	Revenue Recognition
	We recognize our revenues for the sale of services and products when persuasive evidence of an arrangement exists, services have been rendered or delivery has occurred, the fee is fixed or determinable and the collectability of the related revenue is reasonably assured.
	We principally derive revenues from fees for services generated on a project-by-project basis. Prior to the commencement of a project, we reach agreement with the client on rates for services based upon the scope of the project, staffing requirements and the level of client involvement. It is our policy to obtain written agreements from new clients prior to performing services. In these agreements, the clients acknowledge that they will pay based upon the amount of time spent on the project or an agreed upon fee structure. Revenues for services rendered are recognized on a time and materials basis or on a fixed-fee or capped-fee basis in accordance with accounting and disclosure requirements for revenue recognition.
	Fees for services that have been performed, but for which we have not invoiced the customers are recorded as unbilled receivables in the accompanying consolidated balance sheets.
	Revenues from subscription contracts are recognized ratably over the life of the contract, which is generally one year. These fees are typically billed in advance and included in deferred revenue until recognized.
	Revenues for time and materials contracts are recognized based on the number of hours worked by our advisors at an agreed upon rate per hour and are recognized in the period in which services are performed. Revenues for time and materials contracts are billed monthly, semimonthly or in accordance with the specific contractual terms of each project.
	Revenues related to fixed-fee or capped-fee contracts are recognized into revenue as value is delivered to the customer. The pattern of revenue recognition for these contracts varies depending on the terms of the individual contracts, and may be recognized proportionally over the term of the contract or deferred until the end of the contract term and recognized when our obligations have been fulfilled with the customer. In instances where substantive acceptance provisions are specified in customer contracts, revenues are deferred until all acceptance criteria have been met. The pattern of revenue recognition for contracts where revenues are recognized proportionally over the term of the contact is based on the proportional performance method of accounting using the ratio of labor hours incurred to estimated total labor hours, which we consider to be the best available indicator of the pattern and timing in which contract obligations are fulfilled. 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 amount used in this calculation typically excludes the amount the client pays for reimbursable expenses. There are situations where the number of hours to complete projects may exceed our original estimate as a result of an increase in project scope or unforeseen events. On a regular basis, we review the hours incurred and estimated total labor hours to complete. The results of any revisions in these estimates are reflected in the period in which they become known. We believe we have demonstrated a history of successfully estimating the total labor hours to complete a project.
	The agreements entered into in connection with a project, whether on a time and materials basis or fixed-fee or capped-fee basis, typically allow our 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 us through the effective date of the termination. In addition, from time to time, we enter into agreements with clients that limit our right to enter into business relationships with specific competitors of that client for a specific time period. These provisions typically prohibit us from performing a defined range of services that 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.
Reimbursable Expenditures
	Reimbursable Expenditures
	Amounts billed to customers for reimbursable expenditures are included in revenues and the associated costs incurred by the Company are included in direct costs and expenses for advisors in the accompanying consolidated statement of comprehensive income. Non-reimbursable amounts are expensed as incurred. Reimbursable expenditures totaled $9.9 million, $10.4 million and $9.7 million for the years ended December 31, 2014, 2013 and 2012, respectively.
Direct Costs and Expenses for Advisors
	Direct Costs and Expenses for Advisors
	Direct costs and expenses for advisors include payroll expenses and advisory fees directly associated with the generation of revenues and other program expenses. Direct costs and expenses for advisors are expensed as incurred.
	Direct costs and expenses for advisors also include expense accruals for discretionary bonus payments. Bonus accrual levels are adjusted throughout the year based on actual and projected individual and Company performance.
Stock-Based Compensation
	Stock-Based Compensation
	We grant restricted stock with a fair value that is determined based on the closing price of our common stock on the date of grant. Restricted stock generally vests over a four-year period for employees and a three-year period for directors. Stock-based compensation expense is recognized ratably over the applicable service period.
	We follow the provisions of accounting and disclosures requirement for share-based payments, requiring the measurement and recognition of all share-based compensation under the fair value method.
Concentration of Credit Risk
	Concentration of Credit Risk
	Financial instruments that potentially subject the Company to significant concentrations of credit risk consist principally of cash and accounts receivable. The Company places its cash investments with high quality financial institutions. The Company extends credit to its customers based upon an evaluation of the customer's financial condition and credit history and generally does not require collateral.
Treasury Stock
	Treasury Stock
	The Company makes treasury stock purchases in the open market pursuant to the share repurchase program, which was approved by the Board of Directors on November 14, 2007.
	Treasury stock is recorded on the consolidated balance sheet at cost as a reduction of stockholders' equity. Shares are released from Treasury at original cost on a first-in, first-out basis, with any gain on the sale reflected as an adjustment to additional paid-in capital. Losses are reflected as an adjustment to additional paid-in capital to the extent of gains previously recognized, otherwise as an adjustment to retained earnings.
Foreign Currency Translation
	Foreign Currency Translation
	The assets and liabilities of the Company's foreign subsidiaries are translated into U.S. dollars at exchange rates in effect at the end of the reporting period. Revenue and expense items are translated at average exchange rates for the reporting period. Resulting translation adjustments are included in the accompanying statement of comprehensive income and accompanying statement of stockholders' equity as a component of Accumulated Other Comprehensive Loss.
	The functional currency of the Company and its subsidiaries is the respective local currency. The Company has contracts denominated in foreign currencies and therefore, a portion of the Company's revenues are subject to foreign currency risks. Transactional currency gains and losses that arise from transactions denominated in currencies other than the functional currencies of our operations are recorded in Foreign Currency Transaction Loss in the accompanying consolidated statement of comprehensive income.
Fair Value of Financial Instruments
	Fair Value of Financial Instruments
	The carrying value of the Company's cash and cash equivalents, receivables, accounts payable, other current liabilities, and accrued interest approximate fair value.
	Fair value measurements were applied with respect to our nonfinancial assets and liabilities measured on a nonrecurring basis, which would consist of measurements primarily to goodwill, intangible assets and other long-lived assets, and assets acquired and liabilities assumed in a business combination.
	Fair value is the price that would be received upon a sale of an asset or paid upon a transfer of a liability in an orderly transaction between market participants at the measurement date (exit price). Market participants can use market data or assumptions in pricing the asset or liability, including assumptions about risk and the risks inherent in the inputs to the valuation technique. These inputs can be readily observable, market-corroborated, or generally unobservable. The use of unobservable inputs is intended to allow for fair value determinations in situations where there is little, if any, market activity for the asset or liability at the measurement date. Under the fair-value hierarchy:
	•	Level 1 measurements include unadjusted quoted market prices for identical assets or liabilities in an active market;
	•	Level 2 measurements include quoted market prices for identical assets or liabilities in an active market that have been adjusted for items such as effects of restrictions for transferability and those that are not quoted but are observable through corroboration with observable market data, including quoted market prices for similar assets; and
	•	Level 3 measurements include those that are unobservable and of a highly subjective measure.
	During 2014, there were no transfers of our financial assets between Level 1 and Level 2 measures. Our financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement.
	The Company held investments in cash equivalent money market funds of approximately $20,000 at December 31, 2014 and 2013, respectively. The Company considers the fair value of cash equivalent money market funds to be classified within Level 1 of the fair value hierarchy.
	The following table presents the carrying amounts and estimated fair values of our other financial instruments at December 31, 2014 and 2013:
			December 31,
			2014					2013
			Carrying			Estimated		Carrying		Estimated
			Amount			Fair Value		Amount		Fair Value
	Liabilities:
	Contingent consideration, including current portion(1)		$	4,810		$	4,810	$	4,085	$	4,085
	Long-term debt, including current portion			53,371			53,412		56,746		56,762
			$	58,181		$	58,222	$	60,831	$	60,847
	-1	The short-term portion is included in "accrued expenses." The long-term portion is included in "Other liabilities."
	The fair values of these instruments are classified within Level 3 of the fair value hierarchy. The fair values of these instruments have been estimated using a discounted cash flow analysis based on the Company's incremental borrowing rate for similar borrowing arrangements. The incremental borrowing rate used to discount future cash flows ranged from 2.67% to 2.76%. The Company also considered recent transactions of peer group companies for similar instruments with comparable terms and maturities as well as an analysis of current market conditions.
	The Company paid $1.6 million related to the STA contingent consideration during the second quarter of 2014. The Company also increased the STA contingent consideration liability by $0.5 million for year ended December 31, 2014, based on the latest estimates of future profit level due to completion of new projects. On April 15, 2014, the Company recorded a liability of $2.0 million representing the fair value of the contingent consideration related to the acquisition of CCI Consulting Pty Ltd ("CCI"). The Company also increased the CCI contingent consideration liability by $0.1 million for year ended December 31, 2014. The fair value measurement of this contingent consideration is classified within Level 3 of the fair value hierarchy and reflects the Company's own assumptions in measuring fair values using the income approach. In developing these estimates, the Company considered certain performance projections, historical results, and industry trends. This amount was estimated through a valuation model that incorporated probability-weighted assumptions related to the achievement of these milestones and thus the likelihood of the Company making payments. These cash outflow projections have been discounted using a rate ranging from 2.3% to 13.5%, which is the after-tax cost of debt financing for market participants.
	The following table represents the change in the contingent consideration liability during the years ended December 31, 2014 and 2013:
			December 31,
			2014			2013
	Beginning Balance		$	4,085		$	2,787
	Acquisition			1,989			—
	Remeasurement of contingent consideration			632			1,298
	Unrealized loss related to currency translation			(248	)		—
	Payments			(1,633	)		—
	Ending Balance		$	4,825		$	4,085
Dividend
	Dividend
	On December 2, 2014 the Board of Directors authorized a special dividend of $0.14 per share on the Company's issued and outstanding shares of common stock. This cash dividend was paid on January 28, 2015 to shareholders of record as of January 15, 2015. Prior to this special dividend we had not paid any dividends on our common stock.
Income Taxes
	Income Taxes
	We use the asset and liability method to account for income taxes, including recognition of deferred tax assets and liabilities for the anticipated future tax consequences attributable to differences between financial statement amounts and their respective tax basis. We review our deferred tax assets for recovery. A valuation allowance is established when we believe that it is more likely than not that some portion of its deferred tax assets will not be realized. Changes in the valuation allowance from period to period are included in our tax provision in the period of change.
	For uncertain tax positions, we use a prescribed model for assessing the financial recognition and measurement of all tax positions taken or expected to be taken in its tax returns. The guidance provides clarification on derecognition, classification, interest and penalties, accounting in interim periods, disclosures and transition. Our provision for income taxes also includes the impact of provisions established for uncertain income tax positions, as well as the related interest.
Recently Issued Accounting Pronouncements
	Recently Issued Accounting Pronouncements
	In March 2013, the Financial Accounting Standards Board ("FASB") issued new accounting guidance clarifying the accounting for the release of cumulative translation adjustment into net income when a parent either sells a part or all of its investment in a foreign entity or no longer holds a controlling financial interest in a subsidiary or group of assets that is a nonprofit activity or a business within a foreign entity. The new standard is effective for fiscal years, and interim periods within those fiscal years, beginning on or after December 15, 2013. The adoption of this standard did not have a material impact on the Company's financial position, results of operations or cash flows.
	In July 2013, the FASB issued new accounting guidance requires an entity to present an unrecognized tax benefit, or a portion of an unrecognized tax benefit, as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward, except to the extent a net operating loss carryforward, a similar tax loss, or a tax credit carryforward is not available at the reporting date under the tax law of the applicable jurisdiction to settle any additional income taxes that would result from the disallowance of a tax position or the tax law of the applicable jurisdiction does not require the entity to use, and the entity does not intend to use, the deferred tax asset for such purpose, the unrecognized tax benefit should be presented in the financial statements as a liability and should not be combined with deferred tax assets. No new recurring disclosures are required. The amendments are effective for annual and interim reporting periods beginning on or after December 15, 2013, and are to be applied prospectively to all unrecognized tax benefits that exist at the effective date. Retrospective application is permitted. The adoption of this standard did not have a material impact on the Company's financial position, results of operations or cash flows.
	In April 2014, the FASB issued new accounting guidance regarding reporting discontinued operations and disclosures of disposals of components of an entity, which raises the threshold for determining which disposals are required to be presented as discontinued operations and modifies related disclosure requirements. The standard is applied prospectively and is effective in 2015 with early adoption permitted. The Company does not believe the adoption of this guidance will impact its consolidated financial statements or disclosures.
	In May 2014, the FASB issued new accounting guidance outlines a single comprehensive model for entities to use in accounting for revenue. Under the guidance, revenue is recognized when a company transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. The standard is effective for public entities with annual and interim reporting periods beginning after December 15, 2016. Entities have the option of using either a full retrospective or a modified retrospective approach to adopt the guidance. We are currently assessing the effects this guidance may have on our consolidated financial statements, as well as the method of transition that we will use in adopting the new standard.
	In August 2014, the FASB issued guidance on management's responsibility to assess an entity's ability to continue as a going concern and provide related footnote disclosures in certain circumstances. The guidance is effective for the Company's interim and annual periods beginning after December 15, 2016. The Company does not believe the adoption of this guidance will impact its consolidated financial statements or disclosures.

SUMMARY_OF_SIGNIFICANT_ACCOUNT2

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)	12 Months Ended
	Dec. 31, 2014
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Schedule of carrying amounts and estimated fair values of other financial instruments
			December 31,
			2014					2013
			Carrying			Estimated		Carrying		Estimated
			Amount			Fair Value		Amount		Fair Value
	Liabilities:
	Contingent consideration, including current portion(1)		$	4,810		$	4,810	$	4,085	$	4,085
	Long-term debt, including current portion			53,371			53,412		56,746		56,762
			$	58,181		$	58,222	$	60,831	$	60,847
	-1	The short-term portion is included in "accrued expenses." The long-term portion is included in "Other liabilities."
Schedule of change in the contingent consideration liability
			December 31,
			2014			2013
	Beginning Balance		$	4,085		$	2,787
	Acquisition			1,989			—
	Remeasurement of contingent consideration			632			1,298
	Unrealized loss related to currency translation			(248	)		—
	Payments			(1,633	)		—
	Ending Balance		$	4,825		$	4,085

ACQUISITIONS_Tables

ACQUISITIONS (Tables)	12 Months Ended
	Dec. 31, 2014
Convergent Technologies Partners SPA
Business Acquisition
Summary of fair value of consideration transferred
	Cash		$	697
	Redeemable noncontrolling interest*			501
	Total fair value transferred		$	1,198
	*	Equivalent to 49% of CTP's share capital discounted for lack of control and marketability based on third party research.
Schedule of recognized amounts of identifiable assets acquired and liabilities assumed	Recognized amounts of identifiable assets acquired and liabilities assumed as of March 17, 2014:
	Cash		$	734
	Accounts receivable			565
	Other assets			436
	Intangible assets			139
	Accounts payable			(65	)
	Accrued expenses and other			(465	)
	Net assets acquired		$	1,344
	Bargain purchase gain		$	(146	)
Schedule of purchase price assigned to intangible assets and the amortization period
			Purchase Price			Asset Life
			Allocation
	Amortizable intangible assets:
	Customer relationships		$	56		10 years
	Certified Methodology (patent)			83		3 years
	Total intangible assets		$	139
CCI Consulting Pty Ltd
Business Acquisition
Summary of fair value of consideration transferred
	Cash		$	934
	Post-completion installment payment			800
	Restricted stock*			237
	Contingent consideration			1,989
	Working capital adjustment			(56	)
	Total allocable purchase price		$	3,904
	*	50,000 shares at $4.74 at close of market on 4/15/2014 that vest upon achievement of certain performance measures.
Schedule of recognized amounts of identifiable assets acquired and liabilities assumed	Recognized amounts of identifiable assets acquired and liabilities assumed as of April 15, 2014:
	Cash		$	7
	Accounts receivable			275
	Other assets			18
	Intangible assets			1,887
	Accounts payable			(27	)
	Accrued expenses and other			(203	)
	Net assets acquired		$	1,957
	Goodwill(1)		$	1,947
	-1	Goodwill of approximately $1.9 million acquired in the acquisition is deductible for tax purposes.
Schedule of purchase price assigned to intangible assets and the amortization period
			Purchase Price			Asset Life
			Allocation
	Amortizable intangible assets:
	Customer relationships		$	1,270		20 years
	Databases			495		10 years
	Backlog			122		2 years
	Total intangible assets		$	1,887

NET_INCOME_PER_COMMON_SHARE_Ta

NET INCOME PER COMMON SHARE (Tables)	12 Months Ended
	Dec. 31, 2014
NET INCOME PER COMMON SHARE
Schedule of computation of basic and diluted earnings per share
		2014		2013		2012
	Basic:
	Net income attributable to ISG	$	6,178	$	4,776	$	603
	Weighted average common shares		37,086		36,810		36,205
	Earnings per share attributable to ISG	$	0.17	$	0.13	$	0.02
	Diluted:
	Net income attributable to ISG	$	6,178	$	4,776	$	603
	Interest expense of convertible debt, net of tax		80		108		46
	Net income, attributable to ISG, as adjusted	$	6,258	$	4,884	$	649
	Basic weighted average common shares		37,086		36,810		36,205
	Potential common shares		1,607		1,877		1,421
	Diluted weighted average common shares		38,693		38,687		37,626
	Diluted earnings per share attributable to ISG	$	0.16	$	0.13	$	0.02

ACCOUNTS_AND_UNBILLED_RECEIVAB1

ACCOUNTS AND UNBILLED RECEIVABLES (Tables)	12 Months Ended
	Dec. 31, 2014
ACCOUNTS AND UNBILLED RECEIVABLES
Schedule of accounts and unbilled receivables, net of valuation allowance
		December 31,
		2014		2013
	Accounts receivable	$	29,000	$	27,011
	Unbilled receivables		12,014		11,471
	Receivables from related parties		134		206
		$	41,148	$	38,688

FURNITURE_FIXTURES_AND_EQUIPME1

FURNITURE, FIXTURES AND EQUIPMENT (Tables)	12 Months Ended
	Dec. 31, 2014
FURNITURE, FIXTURES AND EQUIPMENT
Schedule of furniture, fixtures and equipment
			December 31,
		Estimated
		Useful Lives	2014			2013
	Computer hardware, software and other office equipment	2 to 5 years	$	3,715		$	2,747
	Furniture, fixtures and leasehold improvements	2 to 5 years		1,240			995
	Internal-use software and development costs	3 to 5 years		4,666			4,046
	Accumulated depreciation			(6,143	)		(4,575	)
			$	3,478		$	3,213

INTANGIBLE_ASSETS_Tables

INTANGIBLE ASSETS (Tables)	12 Months Ended
	Dec. 31, 2014
INTANGIBLE ASSETS
Schedule of carrying amount of intangible assets, net of accumulated amortization and impairment charges
		2014
		Gross		Acquisitions			Accumulated			Currency			Net Book
		Carrying					Amortization			impact			Value
		Amount
	Amortizable intangibles:
	Customer relationships	$	52,140	$	1,326		$	(37,091	)	$	(108	)	$	16,267
	Noncompete agreements		5,665		—			(5,633	)		—			32
	Software		1,500		83			(1,502	)		(18	)		63
	Backlog		4,880		122			(4,971	)		(14	)		17
	Databases		4,949		495			(4,111	)		(62	)		1,271
	Trademark and trade names		1,250		—			(565	)		—			685
	Intangibles	$	70,384	$	2,026		$	(53,873	)	$	(202	)	$	18,335
		2013
		Gross		Accumulated			Net Book
		Carrying		Amortization			Value
		Amount
	Amortizable intangibles:
	Customer relationships	$	52,140	$	(32,104	)	$	20,036
	Noncompete agreements		5,665		(5,603	)		62
	Software		1,500		(1,500	)		—
	Backlog		4,880		(4,880	)		—
	Databases		4,949		(3,817	)		1,132
	Trademark and trade names		1,250		(387	)		863
	Intangibles	$	70,384	$	(48,291	)	$	22,093
Schedule of estimated future amortization expense
	2015	$	5,041
	2016		4,736
	2017		4,353
	2018		1,171
	2019		960
	Thereafter		1,197
		$	17,458

GOODWILL_Tables

GOODWILL (Tables)	12 Months Ended
	Dec. 31, 2014
GOODWILL
Schedule of changes in the carrying amount of goodwill
		2014			2013
	Balance as of January 1
	Goodwill	$	164,959		$	164,959
	Accumulated impairment losses		(130,268	)		(130,268	)
			34,691			34,691
	Acquisitions		1,947
						—
	Foreign currency impact		(238	)		—
			1,709			—
	Balance as of December 31
	Goodwill		166,906			164,959
	Foreign currency impact		(238	)		—
	Accumulated impairment losses		(130,268	)		(130,268	)
		$	36,400		$	34,691

REDEEMABLE_NONCONTROLING_INTER

REDEEMABLE NONCONTROLING INTEREST (Tables)	12 Months Ended
	Dec. 31, 2014
REDEEMABLE NONCONTROLLING INTEREST
Schedules of summary of activity in the noncontrolling interest
		2014
	Balance as of January 1, 2014	$	—
	Noncontrolling interest of CTP and Compass Italy		576
	Net income attributable to noncontrolling interest		126
	Accretion attributable to noncontrolling interest		45
	Balance as of December 31, 2014	$	747

ACCRUED_LIABILITIES_Tables

ACCRUED LIABILITIES (Tables)	12 Months Ended
	Dec. 31, 2014
ACCRUED LIABILITIES
Schedule of components of accrued liabilities
		December 31,
		2014		2013
	Accrued payroll and vacation	$	4,307	$	10,406
	Accrued corporate and payroll related taxes		3,928		4,770
	Dividend payable		5,128		—
	Contingent consideration—current		2,364		1,640
	Other		5,389		4,373
		$	21,116	$	21,189

FINANCING_ARRANGEMENTS_AND_LON1

FINANCING ARRANGEMENTS AND LONG-TERM DEBT (Tables)	12 Months Ended
	Dec. 31, 2014
FINANCING ARRANGEMENTS AND LONG-TERM DEBT
Schedule of long-term debt
		December 31,
		2014		2013
	Senior secured credit facility	$	49,938	$	53,312
	Compass convertible notes		3,434		3,434
			53,372		56,746
	Less current installments on long term debt		3,938		3,375
	Long-term debt	$	49,434	$	53,371
Schedule of aggregate annual maturities of debt obligations by calendar year
		Debt
	2015	$	3,938
	2016		4,500
	2017		4,500
	2018		40,434
		$	53,372

COMMITMENTS_AND_CONTINGENCIES_

COMMITMENTS AND CONTINGENCIES (Tables)	12 Months Ended
	Dec. 31, 2014
COMMITMENTS AND CONTINGENCIES
Schedule of aggregate future minimum payments under noncancelable leases
		Operating
		Leases
	2015	$	2,343
	2016		1,778
	2017		1,125
	2018		536
	2019		253
	Thereafter		423
	Total minimum lease payments	$	6,458

INCOME_TAXES_Tables

INCOME TAXES (Tables)	12 Months Ended
	Dec. 31, 2014
INCOME TAXES
Schedule of the components of income (loss) before income taxes
		Years Ended December 31,
		2014			2013			2012
	Domestic	$	5,208		$	3,913		$	2,104
	Foreign		5,260			5,130			1,136
	Total income before income taxes	$	10,468		$	9,043		$	3,240
Schedule of the components of income tax (benefit) provision
		Years Ended December 31,
		2014			2013			2012
	Current:
	Federal	$	3,535		$	3,917		$	3,330
	State		478			339			862
	Foreign		1,940			1,825			1,088
	Total current provision		5,953			6,081			5,280
	Deferred:
	Federal		(1,477	)		(1,609	)		(1,824	)
	State		(102	)		(86	)		(503	)
	Foreign		(210	)		(119	)		(316	)
	Total deferred benefit		(1,789	)		(1,814	)		(2,643	)
	Total	$	4,164		$	4,267		$	2,637
Schedule of the differences between the effective tax rates reflected in the total provision for income taxes and the U.S. federal statutory rate of 35%
		Years Ended December 31,
		2014			2013			2012
	Tax provision (benefit) computed at 35%	$	3,664		$	3,165		$	1,134
	Nondeductible expenses		406			541			158
	State income taxes, net of federal benefit		258			145			94
	Derecognition of stock compensation deferred tax asset		—			—			451
	Tax impact of foreign operations		(138	)		518			784
	Other		(26	)		(102	)		16
	Income tax provision	$	4,164		$	4,267		$	2,637
	Effective income tax rates		39.8	%		47.2	%		81.4	%
Schedule of significant portions of the deferred tax assets and liabilities due to the tax effects of temporary differences
		December 31,			December 31,
		2014			2013
	Current deferred tax asset
	Compensation related expenses	$	1,266		$	456
	Valuation allowance for deferred tax assets		(461	)		(432	)
	Accruals and reserves		639			1,058
	Total current deferred tax asset		1,444			1,082
	Current deferred tax liability
	Prepaids		(306	)		(257	)
	Total current deferred tax liability		(306	)		(257	)
	Net current deferred tax asset	$	1,138		$	825
	Noncurrent deferred tax asset
	Compensation related expenses	$	907		$	1,006
	Foreign currency translation		2,629			1,500
	Foreign tax credit carryovers		1,861			1,739
	Foreign net operating loss carryovers		4,442			5,102
	U.S. net operating loss carryovers		368			368
	Other		392			333
	Valuation allowance for deferred tax assets		(5,233	)		(5,862	)
	Total noncurrent deferred tax asset		5,366			4,186
	Noncurrent deferred tax liability
	Depreciable assets		(165	)		(239	)
	Intangible assets		(3,388	)		(5,158	)
	Investment in foreign subsidiaries		(1,182	)		(1,221	)
	Total noncurrent deferred tax liability		(4,735	)		(6,618	)
	Net noncurrent deferred tax asset (liability)		631			(2,432	)
	Net deferred tax asset (liability)	$	1,769		$	(1,607	)
Schedule of reconciliation of the total amounts of unrecognized tax benefits at the beginning and end of the period
		December 31,
		2014			2013			2012
	Balance, beginning of year	$	2,288		$	2,470		$	2,087
	Reductions as a result of tax positions taken during a prior period		—			(139	)		—
	Additions as a result of tax positions taken during the current period		146			110			383
	Reductions as a result of settlement with tax authorities		—			(139	)		—
	Reductions as a result of lapse of statute		(242	)		(14	)		—
	Balance, end of year	$	2,192		$	2,288		$	2,470

STOCK_BASED_COMPENSATION_PLANS1

STOCK BASED COMPENSATION PLANS (Tables)	12 Months Ended
	Dec. 31, 2014
STOCK BASED COMPENSATION
Summary of the status of the Company's SARs issued under its Incentive Plan
		SARs			Weighted-Average		Weighted-Average		Aggregate
					Exercise Price		Remaining		Intrinsic
							Contractual		Value
							Life
							(in years)
	Outstanding at December 31, 2011		396		$	5.04		6.5	$	—
	Granted		—		$	—
	Exercised		—		$	—
	Forfeited		(131	)	$	5.29
	Outstanding at December 31, 2012		265		$	4.92		5.5	$	—
	Granted		—		$	—
	Exercised		(45	)	$	3.18			$	45
	Forfeited		(88	)	$	5.27
	Outstanding at December 31, 2013		132		$	5.28		4.4	$	67
	Granted		—		$	—
	Exercised		(13	)	$	3.18			$	22
	Forfeited		(13	)	$	3.18			$	22
	Outstanding at December 31, 2014		106		$	5.78		3.3	$	39
	Vested and expected to vest at December 31, 2014		106		$	5.78		3.3	$	39
	Exercisable at December 31, 2014		106		$	5.78		3.3	$	39
Schedule of assumptions used for computing weighted-average grant date fair value per market-based share of awards granted
	Expected term of award		4 years
	Risk-free interest rate		1.10	%
	Expected volatility		50	%
Summary of the status of the Company's RSUs issued under its Incentive Plan
		RSU			Weighted-Average
					Grant Date
					Fair Value
	Non-vested at December 31, 2011		2,658		$	2.26
	Granted		1,057		$	1.21
	Vested		(1,033	)	$	2.49
	Forfeited		(334	)	$	2.12
	Non-vested at December 31, 2012		2,348		$	1.71
	Granted		1,578		$	2.31
	Vested		(2,045	)	$	1.85
	Forfeited		(254	)	$	1.68
	Non-vested at December 31, 2013		1,627		$	2.13
	Granted		1,729		$	4.56
	Vested		(689	)	$	2.03
	Forfeited		(31	)	$	3.23
	Non-vested at December 31, 2014		2,636		$	3.73

SEGMENT_AND_GEOGRAPHICAL_INFOR1

SEGMENT AND GEOGRAPHICAL INFORMATION (Tables)	12 Months Ended
	Dec. 31, 2014
SEGMENT AND GEOGRAPHICAL INFORMATION
Schedule of geographical revenue information for the segment
			Years Ended December 31,
			2014		2013		2012
	Revenues
	Americas(1)		$	105,915	$	114,603	$	104,925
	Europe(2)			84,107		75,127		62,671
	Asia Pacific(3)			19,595		21,252		25,149
			$	209,617	$	210,982	$	192,745
	Identifiable long-lived assets
	Americas		$	2,131	$	2,064	$	1,893
	Europe			1,130		912		931
	Asia Pacific			217		237		250
			$	3,478	$	3,213	$	3,074
	-1	Substantially all relates to operations in the United States.
	-2	Includes revenues from operations in Germany of $31.8 million, $30.1 million and $28.3 million in 2014, 2013 and 2012, respectively. Includes revenues from operations in the United Kingdom of $19.9 million, $19.9 million and $14.1 million in 2014, 2013 and 2012, respectively.
	-3	Includes revenues from operations in Australia of $14.3 million, $16.1 million and $18.0 million in 2014, 2013 and 2012, respectively.

UNAUDITED_QUARTERLY_INFORMATIO1

UNAUDITED QUARTERLY INFORMATION (Tables)	12 Months Ended
	Dec. 31, 2014
UNAUDITED QUARTERLY INFORMATION
Schedule of unaudited quarterly information
		Quarters Ended
		March 31,			June 30,			September 30,			December 31,
		2014			2014			2014			2014
	Fiscal 2014:
	Net sales	$	48,241		$	54,888		$	53,258		$	53,230
	Gross profit	$	18,429		$	23,391		$	21,771		$	21,894
	Operating income	$	1,036		$	4,524		$	3,772		$	3,346
	Other expense, net	$	(530	)	$	(374	)	$	(574	)	$	(732	)
	Income from operations	$	506		$	4,150		$	3,198		$	2,614
	Net income attributable to ISG	$	63		$	3,105		$	2,353		$	657
	Basic earnings per share attributable to ISG		0			0.08			0.06			0.02
		$			$			$			$
	Diluted earnings per share attributable to ISG	$	0		$	0.08		$	0.06		$	0.02
	Basic weighted average common shares attributable to ISG		37,383			37,220			37,039			36,702
	Diluted weighted average common shares attributable to ISG		38,861			38,837			38,740			38,333
		Quarters Ended
		March 31,			June 30,			September 30,			December 31,
		2013			2013			2013			2013
	Fiscal 2013:
	Net sales	$	50,588		$	55,583		$	51,371		$	53,440
	Gross profit	$	20,556		$	23,881		$	20,638		$	21,922
	Operating income	$	2,610		$	4,307		$	1,797		$	2,987
	Other expense, net	$	(674	)	$	(672	)	$	(686	)	$	(626	)
	Income from operations	$	1,936		$	3,635		$	1,111		$	2,361
	Net income	$	969		$	2,439		$	411		$	957
	Basic earnings per share		0.03			0.07			0.01			0.03
		$			$			$			$
	Diluted earnings per share	$	0.03		$	0.06		$	0.01		$	0.03
	Basic weighted average common shares		36,632			36,756			36,781			37,071
	Diluted weighted average common shares		38,794			38,512			38,830			38,614

SUMMARY_OF_SIGNIFICANT_ACCOUNT3

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Business Combinations
Bargain purchase gain	$146,000
Internal-Use Software and Website Development Costs
Capitalized costs associated with system conversion and website development	600,000	700,000	600,000
Goodwill
Percentage points of control premium added to the stock price as quoted on the Nasdaq Global Market	35.00%
Revenue growth rates per year under discounted cash flow model (as a percent)	3.00%
Rate employed to discount future excess cash flows (as a percent)	13.50%
Debt Issuance Costs
Amortization of debt issuance costs included in interest expense	153,000	214,000	350,000
Revenue Recognition
Notice period to terminate agreements early due to breach or for convenience	30 days
Reimbursable Expenditures
Reimbursable expenditures	$9,900,000	$10,400,000	$9,700,000
Furniture Fixtures And Equipment | Minimum
Furniture, Fixtures and Equipment, net
Estimated useful life of assets	3 years
Furniture Fixtures And Equipment | Maximum
Furniture, Fixtures and Equipment, net
Estimated useful life of assets	5 years
Leasehold Improvements | Minimum
Furniture, Fixtures and Equipment, net
Estimated useful life of assets	3 years
Leasehold Improvements | Maximum
Furniture, Fixtures and Equipment, net
Estimated useful life of assets	5 years

SUMMARY_OF_SIGNIFICANT_ACCOUNT4

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2) (Restricted Stock)	12 Months Ended
	Dec. 31, 2014
Directors
Stock-Based Compensation
Award vesting period	3 years
Employees
Stock-Based Compensation
Award vesting period	4 years

SUMMARY_OF_SIGNIFICANT_ACCOUNT5

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 3) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Jun. 30, 2014	Apr. 15, 2014
Fair value of assets and liabilities measured on recurring and non-recurring basis
Transfers of financial assets between Level 1 and Level 2	$0
Transfers of financial assets between Level 2 and Level 1	0
Cash equivalents	27,662,000	35,085,000	23,499,000	24,469,000
Contingent consideration, including current portion	4,825,000	4,085,000	2,787,000
Long-term debt, including current portion	53,372,000	56,746,000
Increase in contingent consideration	658,000	1,299,000	-2,000,000
Change in the contingent consideration liability
Beginning Balance	4,085,000	2,787,000
Acquisition	1,989,000
Remeasurement of contingent consideration	632,000	1,298,000
Unrealized loss related to currency translation	-248,000
Payments	-1,633,000		-2,000,000
Ending Balance	4,825,000	4,085,000	2,787,000
Minimum
Fair value of assets and liabilities measured on recurring and non-recurring basis
Incremental borrowing rate used to discount future cash flows from financial instruments (as a percent)	2.67%
Rate used to discount future cash outflow projections related to contingent consideration (as a percent)	2.30%
Maximum
Fair value of assets and liabilities measured on recurring and non-recurring basis
Incremental borrowing rate used to discount future cash flows from financial instruments (as a percent)	2.76%
Rate used to discount future cash outflow projections related to contingent consideration (as a percent)	13.50%
Salvaggio Teal And Associates
Fair value of assets and liabilities measured on recurring and non-recurring basis
Amount paid for contingent consideration					1,600,000
Increase in contingent consideration	500,000
CCI Consulting Private Limited
Fair value of assets and liabilities measured on recurring and non-recurring basis
Contingent consideration, including current portion	1,900,000
Increase in contingent consideration	100,000
Change in the contingent consideration liability
Ending Balance	1,900,000
Carrying Amount
Fair value of assets and liabilities measured on recurring and non-recurring basis
Contingent consideration, including current portion	4,810,000	4,085,000
Long-term debt, including current portion	53,371,000	56,746,000
Total	58,181,000	60,831,000
Change in the contingent consideration liability
Ending Balance	4,810,000	4,085,000
Estimated Fair Value
Fair value of assets and liabilities measured on recurring and non-recurring basis
Contingent consideration, including current portion	4,810,000	4,085,000
Long-term debt, including current portion	53,412,000	56,762,000
Total	58,222,000	60,847,000
Change in the contingent consideration liability
Ending Balance	4,810,000	4,085,000
Estimated Fair Value | Fair Value Inputs Level1 | Money Market Funds
Fair value of assets and liabilities measured on recurring and non-recurring basis
Cash equivalents	20,000	20,000
Estimated Fair Value | Fair Value Inputs Level3 | CCI Consulting Private Limited
Fair value of assets and liabilities measured on recurring and non-recurring basis
Contingent consideration, including current portion						2,000,000
Change in the contingent consideration liability
Beginning Balance						2,000,000
Ending Balance						$2,000,000

SUMMARY_OF_SIGNIFICANT_ACCOUNT6

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 4) (USD $)	0 Months Ended	12 Months Ended	0 Months Ended
	Dec. 02, 2014	Dec. 31, 2014	Jan. 28, 2015
Dividend
Special dividend declared per share	$0.14	$0.14
Subsequent Event
Dividend
Special dividend paid per share			$0.14

ACQUISITIONS_Details

ACQUISITIONS (Details)

12 Months Ended

0 Months Ended

12 Months Ended

0 Months Ended

0 Months Ended

0 Months Ended

0 Months Ended

12 Months Ended

0 Months Ended

0 Months Ended

0 Months Ended

0 Months Ended

Dec. 31, 2014

Dec. 31, 2013

Dec. 31, 2012

Mar. 17, 2014

Dec. 31, 2014

Mar. 17, 2014

Mar. 17, 2014

Mar. 17, 2014

Mar. 17, 2014

Mar. 17, 2014

Mar. 17, 2014

Mar. 17, 2014

Apr. 15, 2014

Apr. 15, 2014

Dec. 31, 2014

Apr. 15, 2014

Apr. 15, 2014

Apr. 15, 2014

Apr. 15, 2014

Apr. 15, 2014

Apr. 15, 2014

Apr. 15, 2014

Apr. 15, 2014

Mar. 17, 2014

Mar. 17, 2014

USD ($)

USD ($)

USD ($)

Convergent Technologies Partners SPA

Convergent Technologies Partners SPA

Convergent Technologies Partners SPA

Convergent Technologies Partners SPA

Convergent Technologies Partners SPA

Convergent Technologies Partners SPA

Convergent Technologies Partners SPA

Convergent Technologies Partners SPA

Convergent Technologies Partners SPA

CCI Consulting Pty Ltd

CCI Consulting Pty Ltd

CCI Consulting Pty Ltd

CCI Consulting Pty Ltd

CCI Consulting Pty Ltd

CCI Consulting Pty Ltd

CCI Consulting Pty Ltd

CCI Consulting Pty Ltd

CCI Consulting Pty Ltd

CCI Consulting Pty Ltd

CCI Consulting Pty Ltd

Compass Management Consulting Italy

Compass Management Consulting Italy

USD ($)

USD ($)

USD ($)

Compass BV

Compass BV

Customer Relationships

Customer Relationships

Certified Methodology (patent)

Certified Methodology (patent)

USD ($)

AUD

USD ($)

USD ($)

AUD

Customer Relationships

Customer Relationships

Databases

Databases

Backlog

Backlog

Convergent Technologies Partners SPA

Convergent Technologies Partners SPA

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

item

Business Acquisition

Purchase price

$1,000,000

1,900,000

Percentage of share capital acquired

51.00%

100.00%

Fair value of consideration transferred

Cash

697,000

934,000

1,000,000

Redeemable noncontrolling interest

501,000

Total fair value transferred

1,198,000

3,904,000

300,000

Ownership interest held by noncontrolling interest (as a percent)

49.00%

Noncontrolling interest calculated based on ratio of average 2015 and 2016 EBITDA

4

Post completion installment payment

800,000

900,000

Restricted stock

237,000

Contingent consideration

4,825,000

4,085,000

2,787,000

1,989,000

Working capital adjustment

-56,000

Number of shares issued as part of the acquisition

50,000

50,000

Per share price of shares issued as part of the acquisition (in dollars per share)

$4.74

Allocation of Purchase Price:

Cash

734,000

7,000

Accounts receivable

565,000

275,000

Other assets

436,000

18,000

Goodwill

36,400,000

34,691,000

34,691,000

1,947,000

Goodwill acquired in the acquisition is deductible for tax purposes

1,900,000

Intangible assets

139,000

1,887,000

Accounts payable

-65,000

-27,000

Accrued expenses and other

-465,000

-203,000

Net assets acquired

1,344,000

1,957,000

Bargain purchase gain

146,000

-146,000

Acquisition costs are included in the selling, general and administrative expenses

200,000

200,000

Amortizable intangible assets:

Amortizable intangible assets

56,000

83,000

1,270,000

495,000

122,000

Asset Life

10 years

3 years

20 years

10 years

2 years

Minimum earn-out payments to be paid to the sellers

0

Maximum earn-out payments to be paid to the sellers

3,000,000

NET_INCOME_PER_COMMON_SHARE_De

NET INCOME PER COMMON SHARE (Details)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Stock Appreciation Rights S A R S
Antidilutive securities
Securities considered antidilutive (in shares)	100,000	100,000	300,000
Restricted Stock
Antidilutive securities
Securities considered antidilutive (in shares)		800,000	1,200,000
Restricted Stock | Salvaggio Teal And Associates
Antidilutive securities
Shares excluded from basic and diluted earnings per share since the contingency has not been met	250,000
Restricted Stock | CCI Consulting Private Limited
Antidilutive securities
Shares excluded from basic and diluted earnings per share since the contingency has not been met	50,000

NET_INCOME_PER_COMMON_SHARE_De1

NET INCOME PER COMMON SHARE (Details 2) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Basic:
Net income attributable to ISG	$657	$2,353	$3,105	$63	$957	$411	$2,439	$969	$6,178	$4,776	$603
Weighted average common shares	36,702	37,039	37,220	37,383	37,071	36,781	36,756	36,632	37,086	36,810	36,205
Earnings per share attributable to ISG	$0.02	$0.06	$0.08	$0	$0.03	$0.01	$0.07	$0.03	$0.17	$0.13	$0.02
Diluted:
Net income attributable to ISG	657	2,353	3,105	63	957	411	2,439	969	6,178	4,776	603
Interest expense of convertible debt, net of tax									80	108	46
Net income, attributable to ISG, as adjusted									$6,258	$4,884	$649
Basic Weighted Average Common shares	36,702	37,039	37,220	37,383	37,071	36,781	36,756	36,632	37,086	36,810	36,205
Potential common shares									1,607	1,877	1,421
Diluted weighted average common shares	38,333	38,740	38,837	38,861	38,614	38,830	38,512	38,794	38,693	38,687	37,626
Diluted earnings per share attributable to ISG	$0.02	$0.06	$0.08	$0	$0.03	$0.01	$0.06	$0.03	$0.16	$0.13	$0.02

ACCOUNTS_AND_UNBILLED_RECEIVAB2

ACCOUNTS AND UNBILLED RECEIVABLES (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
ACCOUNTS AND UNBILLED RECEIVABLES
Accounts receivable	$29,000	$27,011
Unbilled Receivables	12,014	11,471
Receivables from related parties	134	206
Accounts and unbilled receivables, Total	$41,148	$38,688

FURNITURE_FIXTURES_AND_EQUIPME2

FURNITURE, FIXTURES AND EQUIPMENT (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Furniture, fixtures and equipment
Accumulated depreciation	($6,143)	($4,575)
Furniture, fixtures and equipment, net	3,478	3,213	3,074
Depreciation expense	1,792	1,647	1,707
Computer Hardware Software And Other Office Equipment
Furniture, fixtures and equipment
Furniture, fixture and equipment, gross	3,715	2,747
Computer Hardware Software And Other Office Equipment | Minimum
Furniture, fixtures and equipment
Estimated Useful Lives	2 years
Computer Hardware Software And Other Office Equipment | Maximum
Furniture, fixtures and equipment
Estimated Useful Lives	5 years
Furniture Fixtures And Leasehold Improvements
Furniture, fixtures and equipment
Furniture, fixture and equipment, gross	1,240	995
Furniture Fixtures And Leasehold Improvements | Minimum
Furniture, fixtures and equipment
Estimated Useful Lives	2 years
Furniture Fixtures And Leasehold Improvements | Maximum
Furniture, fixtures and equipment
Estimated Useful Lives	5 years
Software And Software Development Costs
Furniture, fixtures and equipment
Furniture, fixture and equipment, gross	$4,666	$4,046
Software And Software Development Costs | Minimum
Furniture, fixtures and equipment
Estimated Useful Lives	3 years
Software And Software Development Costs | Maximum
Furniture, fixtures and equipment
Estimated Useful Lives	5 years

INTANGIBLE_ASSETS_Details

INTANGIBLE ASSETS (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Intangible assets
Gross Carrying Amount	$70,384	$70,384
Acquisitions	2,026
Accumulated Amortization	-53,873	-48,291
Currency impact	-202
Net Book Value	18,335	22,093
Amortization expense	5,581	5,827	7,150
Estimated future amortization expense
2015	5,041
2016	4,736
2017	4,353
2018	1,171
2019	960
Thereafter	1,197
Estimated future amortization expense	17,458
Customer Relationships
Intangible assets
Gross Carrying Amount	52,140	52,140
Acquisitions	1,326
Accumulated Amortization	-37,091	-32,104
Currency impact	-108
Net Book Value	16,267	20,036
Noncompete Agreements
Intangible assets
Gross Carrying Amount	5,665	5,665
Accumulated Amortization	-5,633	-5,603
Net Book Value	32	62
Software
Intangible assets
Gross Carrying Amount	1,500	1,500
Acquisitions	83
Accumulated Amortization	-1,502	-1,500
Currency impact	-18
Net Book Value	63
Backlog
Intangible assets
Gross Carrying Amount	4,880	4,880
Acquisitions	122
Accumulated Amortization	-4,971	-4,880
Currency impact	-14
Net Book Value	17
Databases
Intangible assets
Gross Carrying Amount	4,949	4,949
Acquisitions	495
Accumulated Amortization	-4,111	-3,817
Currency impact	-62
Net Book Value	1,271	1,132
Trademarks And Trade Names
Intangible assets
Gross Carrying Amount	1,250	1,250
Accumulated Amortization	-565	-387
Net Book Value	$685	$863

GOODWILL_Details

GOODWILL (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2012
Changes in the carrying amount of goodwill
Goodwill balance at the beginning of the period, gross	$164,959	$164,959
Accumulated impairment losses	-130,268	-130,268
Balance as of January 1	34,691	34,691
Acquisitions	1,947
Foreign currency impact	-238
Changes during the period	1,709
Goodwill balance at the end of the period, gross	166,906	164,959
Foreign currency impact	-238
Accumulated impairment losses	-130,268	-130,268
Balance as of December 31	$36,400	$34,691

REDEEMABLE_NONCONTROLLING_INTE1

REDEEMABLE NONCONTROLLING INTEREST (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014
REDEEMABLE NONCONTROLLING INTEREST
Noncontrolling interest of CTP and Compass Italy	$576
Net income attributable to noncontrolling interest	126
Accretion attributable to noncontrolling interest	45
Balance at the end of the period	$747

ACCRUED_LIABILITIES_Details

ACCRUED LIABILITIES (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
ACCRUED LIABILITIES
Accrued payroll and vacation	$4,307	$10,406
Accrued corporate and payroll related taxes	3,928	4,770
Dividend payable	5,128
Contingent consideration - current	2,364	1,640
Other	5,389	4,373
Accrued liabilities	$21,116	$21,189

SHARE_REPURCHASE_PROGRAM_Detai

SHARE REPURCHASE PROGRAM (Details) (USD $)	0 Months Ended		12 Months Ended
Share data in Millions, unless otherwise specified	Nov. 14, 2007	Oct. 16, 2007	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	6-May-14
SHARE REPURCHASE PROGRAM
Number of shares of common stock repurchased		15.9
Maximum additional authorized amount under the share repurchase program	$15,000,000
Maximum amount authorized under repurchase plan						20,000,000
Amount available under the stock repurchase plan			18,000,000
Share repurchases amount			$5,320,000	$4,055,000	$1,513,000

FINANCING_ARRANGEMENTS_AND_LON2

FINANCING ARRANGEMENTS AND LONG-TERM DEBT (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Apr. 26, 2013
In Thousands, unless otherwise specified
FINANCING ARRANGEMENTS AND LONG-TERM DEBT
Long-term debt, total	$53,372	$56,746
Less current installments on long term debt	3,938	3,375
Long-term debt	49,434	53,371
Aggregate annual maturities of debt obligations
2015	3,938
2016	4,500
2017	4,500
2018	40,434
Long-term debt, total	53,372	56,746
Secured Debt
FINANCING ARRANGEMENTS AND LONG-TERM DEBT
Long-term debt, total	49,938	53,312
Aggregate annual maturities of debt obligations
Long-term debt, total	49,938	53,312
Convertible Notes Payable | C C G H Limited
FINANCING ARRANGEMENTS AND LONG-TERM DEBT
Long-term debt, total	3,434	3,434	1,100
Aggregate annual maturities of debt obligations
Long-term debt, total	$3,434	$3,434	$1,100

FINANCING_ARRANGEMENTS_AND_LON3

FINANCING ARRANGEMENTS AND LONG-TERM DEBT (Details 2) (USD $)	12 Months Ended		0 Months Ended		3 Months Ended	0 Months Ended	8 Months Ended	0 Months Ended
	Dec. 31, 2013	Dec. 31, 2014	Apr. 26, 2013	Jan. 04, 2011	Jun. 30, 2013	3-May-13	Dec. 31, 2013	Nov. 25, 2013	Nov. 16, 2007
FINANCING ARRANGEMENTS AND LONG-TERM DEBT
Additional principal repayment due in 2015		3,938,000
Additional principal repayment due in 2016		4,500,000
Issuance of debt	55,000,000
Amount outstanding	56,746,000	53,372,000					56,746,000
Secured Debt
FINANCING ARRANGEMENTS AND LONG-TERM DEBT
Outstanding borrowings		39,900,000
Amount outstanding	53,312,000	49,938,000					53,312,000
Secured Debt | Subsidiaries
FINANCING ARRANGEMENTS AND LONG-TERM DEBT
Maximum total leverage ratio		350.00%
Revolving Credit Facility
FINANCING ARRANGEMENTS AND LONG-TERM DEBT
Outstanding borrowings		10,000,000
Convertible Notes Payable | C C G H Limited
FINANCING ARRANGEMENTS AND LONG-TERM DEBT
Amount of gain (loss) recognized					500,000
Issuance of debt				6,300,000
Rate of interest (as a percent)				3.88%
Trigger Event condition related to minimum market price of common stock on the Nasdaq Global market (in dollars per share)				$4
Trigger event condition related to number of consecutive trading days on which market price of common stock exceeds $4 per share on the Nasdaq Global Market				60 days
Conversion rate				0.25
Written notice period after trigger event, that company need to serve for prepayment of all or portion of the outstanding principal amount of the Notes				30 days
Amount paid in satisfaction of full of all indebtedness owing by the Company under the Note			650,000
Amount outstanding	3,434,000	3,434,000	1,100,000				3,434,000
Credit Agreement2007
FINANCING ARRANGEMENTS AND LONG-TERM DEBT
Early termination penalties incurred						0
Amount of gain (loss) recognized					-400,000
Credit Agreement2007 | Secured Debt | Subsidiaries
FINANCING ARRANGEMENTS AND LONG-TERM DEBT
Maximum borrowing capacity under senior secured credit facility									95,000,000
Outstanding borrowings									95,000,000
Credit Agreement2007 | Revolving Credit Facility | Subsidiaries
FINANCING ARRANGEMENTS AND LONG-TERM DEBT
Maximum borrowing capacity under senior secured credit facility									10,000,000
Credit Agreement2013
FINANCING ARRANGEMENTS AND LONG-TERM DEBT
Outstanding borrowings						55,000,000
Term of senior secured credit facility						5 years
Credit Agreement2013 | Base Rate
FINANCING ARRANGEMENTS AND LONG-TERM DEBT
Interest rate basis		Base Rate
Credit Agreement2013 | Prime Rate
FINANCING ARRANGEMENTS AND LONG-TERM DEBT
Interest rate basis		prime rate
Credit Agreement2013 | Federal Funds Rate
FINANCING ARRANGEMENTS AND LONG-TERM DEBT
Interest rate basis		Federal Funds Rate
Applicable margin (as a percent)		0.50%
Credit Agreement2013 | Eurodollar
FINANCING ARRANGEMENTS AND LONG-TERM DEBT
Interest rate basis		Eurodollar Rate
Applicable margin (as a percent)		1.00%
Credit Agreement2013 | Secured Debt
FINANCING ARRANGEMENTS AND LONG-TERM DEBT
Maximum borrowing capacity under senior secured credit facility						45,000,000
Term of senior secured credit facility						5 years
Percentage of proceeds from asset sales used for mandatory repayments of the debt		100.00%
Percentage of net proceeds from issuances of debt and equity used for mandatory repayments of the debt		100.00%
Percentage of net proceeds from insurance recovery and condemnation events used for mandatory repayments of the debt		100.00%
Minimum notional amount required as a percentage of aggregate outstanding indebtedness other than revolving outstanding for establishment of fixed or maximum interest rate covering		50.00%
Interest rate covering period for specified percentage of notional amount		3 years
Credit Agreement2013 | Secured Debt | Debt Instrument Periodic Payment By Commencing Date30 September2013
FINANCING ARRANGEMENTS AND LONG-TERM DEBT
Numbers of consecutive quarterly installments in which principal amount is repaid		8
Principal repayments		843,750
Credit Agreement2013 | Secured Debt | Debt Instrument Periodic Payment By Commencing Date30 September2015
FINANCING ARRANGEMENTS AND LONG-TERM DEBT
Numbers of consecutive quarterly installments in which principal amount is repaid		11
Principal repayments		1,125,000
Credit Agreement2013 | Secured Debt | Base Rate
FINANCING ARRANGEMENTS AND LONG-TERM DEBT
Interest rate basis		Base Rate loans
Applicable margin (as a percent)		2.50%
Credit Agreement2013 | Secured Debt | Eurodollar
FINANCING ARRANGEMENTS AND LONG-TERM DEBT
Interest rate basis		Eurodollar loans
Applicable margin (as a percent)		3.50%
Credit Agreement2013 | Secured Debt | London Interbank Offered Rate L I B O R
FINANCING ARRANGEMENTS AND LONG-TERM DEBT
Interest rate basis							LIBOR
Applicable margin (as a percent)		5.00%
Credit Agreement2013 | Revolving Credit Facility
FINANCING ARRANGEMENTS AND LONG-TERM DEBT
Maximum borrowing capacity under senior secured credit facility						25,000,000
Term of senior secured credit facility						5 years
Credit Agreement2013 | Revolving Credit Facility | Base Rate
FINANCING ARRANGEMENTS AND LONG-TERM DEBT
Interest rate basis		Base Rate loans
Applicable margin (as a percent)		2.50%
Credit Agreement2013 | Revolving Credit Facility | Eurodollar
FINANCING ARRANGEMENTS AND LONG-TERM DEBT
Interest rate basis		Eurodollar loans
Applicable margin (as a percent)		3.50%
Credit Agreement2013 | Convertible Notes Payable | C C G H Limited
FINANCING ARRANGEMENTS AND LONG-TERM DEBT
Amount of gain (loss) recognized								0
Settlement of Compass convertible note								$1,700,000

COMMITMENTS_AND_CONTINGENCIES_1

COMMITMENTS AND CONTINGENCIES (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Aggregate future minimum payments under noncancelable leases
2015	$2,343,000
2016	1,778,000
2017	1,125,000
2018	536,000
2019	253,000
Thereafter	423,000
Total minimum lease payments	6,458,000
Rental expense for operating leases	3,600,000	3,200,000	3,000,000
T P I Advisory Services Americas Inc
TPI Employee Retirement Plan
Period of service after which employees are generally eligible to participate in the Plan	6 months
Vesting percentage of employees under profit-sharing plan	100.00%
Contribution under profit-sharing plan	1,600,000	1,600,000	1,600,000
T P I Advisory Services Americas Inc | Effective January 1, 2008
TPI Employee Retirement Plan
Maximum employer contribution per eligible employee (as a percent)	3.00%
Maximum employer contribution per eligible employee, amount	$7,800

COMMITMENTS_AND_CONTINGENCIES_2

COMMITMENTS AND CONTINGENCIES (Details 2) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jun. 30, 2014
Contingent Consideration
Contingent consideration, including current portion	$4,825,000	$4,085,000	$2,787,000
Increase in contingent consideration	658,000	1,299,000	-2,000,000
Salvaggio Teal And Associates
Contingent Consideration
Increase in contingent consideration	500,000
Amount paid for contingent consideration				1,600,000
Salvaggio Teal And Associates | Forecast
Contingent Consideration
Amount expected to be paid in first quarter of 2015 and the first quarter of 2016 related to 2014 performance	1,700,000
CCI Consulting Private Limited
Contingent Consideration
Contingent consideration, including current portion	1,900,000
Contingent consideration classified as current	700,000
Increase in contingent consideration	$100,000

RELATED_PARTY_TRANSACTIONS_Det

RELATED PARTY TRANSACTIONS (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
RELATED PARTY TRANSACTIONS
Receivables from related parties, including shareholders	$134	$206
Payable to related parties	$0	$0

INCOME_TAXES_Details

INCOME TAXES (Details) (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income before income taxes
Domestic									$5,208,000	$3,913,000	$2,104,000
Foreign									5,260,000	5,130,000	1,136,000
Income before taxes	2,614,000	3,198,000	4,150,000	506,000	2,361,000	1,111,000	3,635,000	1,936,000	10,468,000	9,043,000	3,240,000
Current:
Federal									3,535,000	3,917,000	3,330,000
State									478,000	339,000	862,000
Foreign									1,940,000	1,825,000	1,088,000
Total current provision									5,953,000	6,081,000	5,280,000
Deferred:
Federal									-1,477,000	-1,609,000	-1,824,000
State									-102,000	-86,000	-503,000
Foreign									-210,000	-119,000	-316,000
Total deferred benefit									-1,789,000	-1,814,000	-2,643,000
Total									4,164,000	4,267,000	2,637,000
U.S. federal statutory income tax rate (as a percent)									35.00%	35.00%	35.00%
Differences between the effective tax rates reflected in the total provision for income taxes and the U.S. federal statutory rate
Tax provision (benefit) computed at 35%									3,664,000	3,165,000	1,134,000
Nondeductible expenses									406,000	541,000	158,000
State income taxes, net of federal benefit									258,000	145,000	94,000
Derecognition of stock compensation deferred tax asset											451,000
Tax impact of foreign operations									-138,000	518,000	784,000
Other									-26,000	-102,000	16,000
Total									4,164,000	4,267,000	2,637,000
Effective income tax rates (as a percent)									39.80%	47.20%	81.40%
Current deferred tax asset
Compensation related expenses	1,266,000				456,000				1,266,000	456,000
Valuation allowance for deferred tax assets	-461,000				-432,000				-461,000	-432,000
Accruals and reserves	639,000				1,058,000				639,000	1,058,000
Total current deferred tax asset	1,444,000				1,082,000				1,444,000	1,082,000
Current deferred tax liability
Prepaids	-306,000				-257,000				-306,000	-257,000
Total current deferred tax liability	-306,000				-257,000				-306,000	-257,000
Net current deferred tax asset	1,138,000				825,000				1,138,000	825,000
Noncurrent deferred tax asset
Compensation related expenses	907,000				1,006,000				907,000	1,006,000
Foreign currency translation	2,629,000				1,500,000				2,629,000	1,500,000
Foreign tax credit carryovers	1,861,000				1,739,000				1,861,000	1,739,000
Foreign net operating loss carryovers	4,442,000				5,102,000				4,442,000	5,102,000
U.S. net operating loss carryovers	368,000				368,000				368,000	368,000
Other	392,000				333,000				392,000	333,000
Valuation allowance for deferred tax assets	-5,233,000				-5,862,000				-5,233,000	-5,862,000
Total noncurrent deferred tax asset	5,366,000				4,186,000				5,366,000	4,186,000
Noncurrent deferred tax liability
Depreciable assets	-165,000				-239,000				-165,000	-239,000
Intangible assets	-3,388,000				-5,158,000				-3,388,000	-5,158,000
Investment in foreign subsidiaries	-1,182,000				-1,221,000				-1,182,000	-1,221,000
Total noncurrent deferred tax liability	-4,735,000				-6,618,000				-4,735,000	-6,618,000
Net noncurrent deferred tax asset (liability)	631,000				-2,432,000				631,000	-2,432,000
Net deferred tax asset (liability)	1,769,000				-1,607,000				1,769,000	-1,607,000
Reconciliation of the total amounts of unrecognized tax benefits at the beginning and end of the period
Balance, beginning of year				2,288,000				2,470,000	2,288,000	2,470,000	2,087,000
Reductions as a result of tax positions taken during a prior period										-139,000
Additions as a result of tax positions taken during the current period									146,000	110,000	383,000
Reductions as a result of settlement with tax authorities										-139,000
Reductions as a result of lapse of statute									-242,000	-14,000
Balance, end of year	2,192,000				2,288,000				2,192,000	2,288,000	2,470,000
State income tax expense recognized of interest and penalties related to uncertain tax positions									500,000
Unrecognized tax benefits that would impact the company's effective tax rate	2,200,000								2,200,000
Indemnification arrangements									$800,000

STOCKBASED_COMPENSATION_PLANS_

STOCK-BASED COMPENSATION PLANS (Details) (USD $)	12 Months Ended				0 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Aug. 01, 2013	Jul. 01, 2013
STOCK-BASED COMPENSATION PLANS
Recognized employee stock-based compensation expense	$3,100,000	$3,400,000	$2,800,000
Equity Incentive Plan2007
STOCK-BASED COMPENSATION PLANS
Shares available for grant	4,613,444
Weighted-Average Grant Date Fair Value
Total fair value RSUs vested (in dollars)	1,400,000	3,800,000	2,600,000
Equity Incentive Plan2007 | Maximum
STOCK-BASED COMPENSATION PLANS
Anniversary period from the grant date on which the award will expire	10 years
Equity Incentive Plan2007 | Stock Appreciation Rights S A R S
STOCK-BASED COMPENSATION PLANS
Number of anniversaries	4
Anniversary period from the grant date on which the award will expire	10 years
Period following the employee's termination of services as a result of death or permanent disability after which the award will expire	1 year
Period following fourth anniversary from the grant date after which the award will expire	90 days
Period following the participant's termination of employment due to reasons other than death, disability or retirement after which the award will expire	30 days
SARs
Outstanding at the beginning of the period (in shares)	132,000	265,000	396,000
Exercised (in shares)	-13,000	-45,000
Forfeited (in shares)	-13,000	-88,000	-131,000
Outstanding at the end of the period (in shares)	106,000	132,000	265,000	396,000
Vested and expected to vest at the end of the period (in shares)	106,000
Exercisable at the end of the period (in shares)	106,000
Weighted-Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)	$5.28	$4.92	$5.04
Exercised (in dollars per share)	$3.18	$3.18
Forfeited (in dollars per share)	$3.18	$5.27	$5.29
Outstanding at the end of the period (in dollars per share)	$5.78	$5.28	$4.92	$5.04
Vested and expected to vest at the end of the period (in dollars per share)	$5.78
Exercisable at the end of the period (in dollars per share)	$5.78
Weighted-Average Remaining Contractual Life
Outstanding at the end of the period	3 years 3 months 18 days	4 years 4 months 24 days	5 years 6 months	6 years 6 months
Vested and expected to vest at the end of the period	3 years 3 months 18 days
Exercisable at the end of the period	3 years 3 months 18 days
Aggregate Intrinsic Value
Outstanding at the beginning of the period (in dollars)	67,000
Exercised (in dollars)	22,000	45,000
Forfeited (in dollars)	22,000
Outstanding at the end of the period (in dollars)	39,000	67,000
Vested and expected to vest at the end of the period (in dollars)	39,000
Exercisable at the end of the period (in dollars)	39,000
Total fair value of the awards vested	0	6,000	100,000
Expected life	5 years
Assumptions used for computing weighted-average grant date fair value per market-based share of awards granted
Expected term of award	5 years
Equity Incentive Plan2007 | Stock Appreciation Rights S A R S | Awards Vesting On Four Anniversaries
STOCK-BASED COMPENSATION PLANS
Award vesting percentage	25.00%
Equity Incentive Plan2007 | Restricted Stock Units R S U
Aggregate Intrinsic Value
Expected life	4 years
Assumptions used for computing weighted-average grant date fair value per market-based share of awards granted
Expected term of award	4 years
Percentage of relevant period has elapsed for prorata vesting of the awards	50.00%
RSA and RSU
Non-vested at the beginning of the period (in shares)	1,627,000	2,348,000	2,658,000
Granted (in shares)	1,729,000	1,578,000	1,057,000
Vested (in shares)	-689,000	-2,045,000	-1,033,000
Forfeited (in shares)	-31,000	-254,000	-334,000
Non-vested at the end of the period (in shares)	2,636,000	1,627,000	2,348,000
Weighted-Average Grant Date Fair Value
Non-vested at the beginning of the period (in dollars per share)	$2.13	$1.71	$2.26
Granted (in dollars per share)	$4.56	$2.31	$1.21
Vested (in dollars per share)	$2.03	$1.85	$2.49
Forfeited (in dollars per share)	$3.23	$1.68	$2.12
Non-vested at the end of the period (in dollars per share)	$3.73	$2.13	$1.71
Unrecognized compensation cost related to the RSUs	6,100,000
Weighted-average period to recognize unrecognized compensation cost	2 years 9 months 18 days
Equity Incentive Plan2007 | Restricted Stock Units R S U | Vesting based on performance
STOCK-BASED COMPENSATION PLANS
Recognized employee stock-based compensation expense	1,700,000
Aggregate Intrinsic Value
Expected life	4 years
Closing price of RSUs to be met for specific days based on the market condition for the immediate the vesting of awards	$3.50
Number of consecutive trading days for which the closing price of RSUs is to be met based on the market condition for the immediate vesting of awards	3 days
Percentage of awards vesting immediately based on the market condition	100.00%
Assumptions used for computing weighted-average grant date fair value per market-based share of awards granted
Expected term of award	4 years
Risk-free interest rate (as a percent)	1.10%
Expected volatility (as a percent)	50.00%
RSA and RSU
Granted (in shares)					75,000	804,000
Weighted-Average Grant Date Fair Value
Granted (in dollars per share)					$2.72	$1.90
Equity Incentive Plan2007 | Restricted Stock Units R S U | Awards Vesting On Employment Through The Fourth Anniversary Of Grant
STOCK-BASED COMPENSATION PLANS
Award vesting percentage	100.00%
Equity Incentive Plan2007 | Restricted Stock | Awards Vesting On Change In Control
STOCK-BASED COMPENSATION PLANS
Award vesting percentage	100.00%
Employee Stock
STOCK-BASED COMPENSATION PLANS
Shares available for grant	1,186,421
Weighted-Average Grant Date Fair Value
Offering period for the plan	3 months
Period of interval between occurrence of purchases	3 months
IRS regulated cap for payroll deduction to purchase common stock	$25,000
Purchase price expressed as a percentage of fair market value of common stock (as a percent)	90.00%
Shares issued under ESPP	150,095
Shares available for purchase under ESPP	1,186,421
Employee Stock | Minimum
Weighted-Average Grant Date Fair Value
Eligible service period of employees per week to participate in the plan	20 hours
Eligible service period of employees in a calendar year to participate in the plan	5 months
Percentage of employees' eligible earnings as payroll deduction to purchase common stock	1.00%
Employee Stock | Maximum
Weighted-Average Grant Date Fair Value
Percentage of employees' eligible earnings as payroll deduction to purchase common stock	10.00%

SEGMENT_AND_GEOGRAPHICAL_INFOR2

SEGMENT AND GEOGRAPHICAL INFORMATION (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
									segment
SEGMENT AND GEOGRAPHICAL INFORMATION
Number of segments									1
Segment and geographical information
Revenues	$53,230	$53,258	$54,888	$48,241	$53,440	$51,371	$55,583	$50,588	$209,617	$210,982	$192,745
Furniture, fixtures and equipment, net	3,478				3,213				3,478	3,213	3,074
Americas
Segment and geographical information
Revenues									105,915	114,603	104,925
Furniture, fixtures and equipment, net	2,131				2,064				2,131	2,064	1,893
Europe
Segment and geographical information
Revenues									84,107	75,127	62,671
Furniture, fixtures and equipment, net	1,130				912				1,130	912	931
Asia Pacific
Segment and geographical information
Revenues									19,595	21,252	25,149
Furniture, fixtures and equipment, net	217				237				217	237	250
Germany
Segment and geographical information
Revenues									31,800	30,100	28,300
United Kingdom
Segment and geographical information
Revenues									19,900	19,900	14,100
Australia
Segment and geographical information
Revenues									$14,300	$16,100	$18,000

UNAUDITED_QUARTERLY_INFORMATIO2

UNAUDITED QUARTERLY INFORMATION (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
UNAUDITED QUARTERLY INFORMATION
Net Sales	$53,230	$53,258	$54,888	$48,241	$53,440	$51,371	$55,583	$50,588	$209,617	$210,982	$192,745
Gross Profit	21,894	21,771	23,391	18,429	21,922	20,638	23,881	20,556
Operating income	3,346	3,772	4,524	1,036	2,987	1,797	4,307	2,610	12,678	11,701	6,550
Other expense, net	-732	-574	-374	-530	-626	-686	-672	-674
Income from operations	2,614	3,198	4,150	506	2,361	1,111	3,635	1,936	10,468	9,043	3,240
Net income attributable to ISG	$657	$2,353	$3,105	$63	$957	$411	$2,439	$969	$6,178	$4,776	$603
Earnings per share attributable to ISG	$0.02	$0.06	$0.08	$0	$0.03	$0.01	$0.07	$0.03	$0.17	$0.13	$0.02
Diluted earnings per share attributable to ISG	$0.02	$0.06	$0.08	$0	$0.03	$0.01	$0.06	$0.03	$0.16	$0.13	$0.02
Basic Weighted Average Common shares	36,702	37,039	37,220	37,383	37,071	36,781	36,756	36,632	37,086	36,810	36,205
Diluted weighted average common shares	38,333	38,740	38,837	38,861	38,614	38,830	38,512	38,794	38,693	38,687	37,626

SCHEDULE_II_VALUATION_AND_QUAL1

SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Allowance For Doubtful Accounts
Changes in valuation and qualifying accounts
Balance at Beginning of Period	$352	$395	$549
Charges to Costs and Expenses	-100	49	297
Additions/(Deductions)	-18	-92	-451
Balance at End of Period	234	352	395
Valuation Allowance Of Deferred Tax Assets
Changes in valuation and qualifying accounts
Balance at Beginning of Period	6,294	5,039	9,026
Charges to Costs and Expenses	150	997	784
Additions/(Deductions)	-750	258	-4,771
Balance at End of Period	$5,694	$6,294	$5,039