Document And Entity Information Statistical Measurement [Axis] Note To Financial Statement Details Textual srt_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased Share Repurchase Program, Authorized, Number of Shares (in shares) Note 3 - Goodwill and Intangibles Note 4 - Revenue Provision for income taxes ecd_NonRule10b51ArrTrmntdFlag Non-Rule 10b5-1 Arrangement Terminated [Flag] Note 5 - Credit Losses ecd_NonRule10b51ArrAdoptedFlag Non-Rule 10b5-1 Arrangement Adopted [Flag] Note 6 - Leases Issuance of restricted stock (in shares) Trading Arrangements, by Individual [Table] Note 7 - Net Income (Loss) per Common Share Material Terms of Trading Arrangement [Text Block] Note 10 - Segment Reporting Trademarks [Member] Note 3 - Goodwill and Intangibles - Schedule of Goodwill and Intangible Assets (Details) Note 3 - Goodwill and Intangibles - Schedule of Definite-lived Intangible Assets (Details) Note 3 - Goodwill and Intangibles - Future Amortization Expense (Details) us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation Stock withheld for employee taxes (in shares) Note 4 - Revenue - Disaggregation of Revenue (Details) Minimum [Member] Note 5 - Credit Losses - Schedule of Allowance for Credit Losses (Details) us-gaap_TreasuryStockSharesAcquired Treasury Stock, Shares, Acquired (in shares) Purchase of treasury shares (in shares) Note 6 - Leases - Lease Information (Details) Statistical Measurement [Domain] Note 6 - Leases - Maturities of Lease Liabilities (Details) Maximum [Member] Note 7 - Net Income (Loss) per Common Share - Schedule of Net Income (Loss) per Common Share (Details) Share Repurchase Program [Axis] Note 10 - Segment Reporting - Schedule of Segment Reporting (Details) Schedule of Long-Term Debt Instruments [Table] Share Repurchase Program [Domain] Notes To Financial Statements Notes To Financial Statements [Abstract] us-gaap_IncreaseDecreaseInAccountsReceivable Accounts receivable us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations Net cash provided by operating activities from continuing operations Cash flows from operating activities: Cash flows from investing activities: us-gaap_NetCashProvidedByUsedInOperatingActivities Net cash provided by operating activities Cash flows from financing activities: us-gaap_NetCashProvidedByUsedInInvestingActivities Net cash used in investing activities us-gaap_TreasuryStockAcquiredAverageCostPerShare Shares Acquired, Average Cost Per Share (in dollars per share) Intangible Asset, Finite-Lived, and Capitalized Cost, Software to be Sold, Leased, or Marketed, Estimated Amortization Expense [Table Text Block] us-gaap_NetCashProvidedByUsedInFinancingActivities Net cash used in financing activities Accounts Receivable, Allowance for Credit Loss [Table Text Block] Secured Debt [Member] us-gaap_Dividends Dividends Net advertising expenses Accounting Policies [Abstract] Segments [Domain] Income taxes payable Common Stock Outstanding [Member] Relating to common stock outstanding. Dividends declared (in dollars per share) Segments [Axis] Single Reportable Segment [Member] Relating to a single reportable segment. Diluted, continuing operations (in dollars per share) Basic, continuing operations (in dollars per share) Net income from continuing operations Net income from continuing operations us-gaap_IncreaseDecreaseInInventories Inventories Income Statement [Abstract] us-gaap_SharesOutstanding Balances (in shares) Balances (in shares) Diluted, discontinued operations (in dollars per share) us-gaap_NumberOfReportableSegments Number of Reportable Segments Basic, discontinued operations (in dollars per share) Provision for deferred taxes Segment Reporting [Text Block] us-gaap_TreasuryStockCommonValue Treasury stock at cost - 1,114,216 and 1,049,634 shares us-gaap_StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased Share Repurchase Program, Remaining Authorized, Number of Shares (in shares) Treasury stock, shares (in shares) Treasury Stock, Common [Member] Segment Reporting [Table Text Block] Adjustments to reconcile net income from continuing operations to net cash provided by (used in) operating activities: Net income Net income Preferred stock, par value $0.01 per share, authorized 25 million shares; issued none us-gaap_Liabilities Total liabilities Internet Domain Names [Member] gic_ReclassificationOfIndefiniteIntangiblesToFinite Reclassification of Indefinite Intangibles to Finite The amount of indefinite-lived intangibles reclassified to finite. us-gaap_AmortizationOfIntangibleAssets Intangible Asset, Finite-Lived, Amortization Expense us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation Discontinued Operation, Tax Effect of Discontinued Operation us-gaap_LiabilitiesAndStockholdersEquity Total liabilities and shareholders’ equity Segment Reporting [Table] us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets Prepaid expenses and other assets Stock-based compensation Selling, general & administrative expenses Lessee, Lease, Description [Table] Proceeds from the issuance of common stock from employee stock purchase plan Lease Contractual Term [Axis] Lease Contractual Term [Domain] Changes in operating assets and liabilities: Accounts payable us-gaap_IncreaseDecreaseInAccountsPayable Preferred stock, shares issued (in shares) Amortization period (Year) Preferred stock, shares authorized (in shares) Fair Value, by Balance Sheet Grouping [Table] Preferred stock, par value (in dollars per share) us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect Net increase in cash Effects of exchange rates on cash us-gaap_TreasuryStockValueAcquiredCostMethod Purchase of treasury shares us-gaap_NumberOfReportingUnits Goodwill, Reporting Unit, Number us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations Cash and cash equivalents – beginning of period Cash and cash equivalents – end of period Statement [Table] Weighted average useful life' (Year) Credit Facility [Axis] Credit Facility [Domain] us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity Line of Credit Facility, Current Borrowing Capacity Revolving Credit Facility [Member] Operating leases Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Statement of Financial Position [Abstract] us-gaap_NonoperatingIncomeExpense Interest and other (income) expense, net us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity Line of Credit Facility, Maximum Borrowing Capacity us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs Write-offs - trade accounts receivable Class of Treasury Stock [Table] Goodwill and intangible assets Balance us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity Line of Credit Facility, Remaining Borrowing Capacity Long-Term Debt, Type [Axis] Thereafter us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive Other assets us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue Total lease payments us-gaap_PaymentsForRepurchaseOfCommonStock Purchase of treasury shares Document Type Document Information [Line Items] Document Quarterly Report us-gaap_LesseeOperatingLeaseTermOfContract Lessee, Operating Lease, Term of Contract (Year) 2027 us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths 2031 us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive Document Information [Table] Potentially dilutive securities (in shares) 2026 (adjusted for nine months of payments) us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear Effect of dilutive securities (in shares) Entity Interactive Data Current Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] 2029 us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree Document Transition Report 2028 us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo Diluted (in shares) Weighted average shares outstanding for diluted net income per share (in shares) Statement [Line Items] 2030 us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour Common stock, shares issued (in shares) Net income per common share from continuing operations: Common stock, shares outstanding (in shares) Common stock, shares authorized (in shares) Basic (in shares) us-gaap_DebtInstrumentTerm Debt Instrument, Term (Year) us-gaap_EarningsPerShareBasic Basic (in dollars per share) Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method [Table Text Block] Earnings Per Share, Basic, by Common Class, Including Two-Class Method [Table] Intangible Asset and Goodwill [Table Text Block] Common stock, par value $0.01 per share, authorized 150 million shares; issued 39,314,039 and 39,248,275 shares; outstanding 38,199,823 and 38,198,641 shares 2028 2029 2027 Accounts payable us-gaap_PolicyTextBlockAbstract Accounting Policies 2026 remainder us-gaap_DisclosureTextBlockAbstract Notes to Financial Statements 2030 us-gaap_TableTextBlock Notes Tables Definite-lived intangibles Total Proceeds from issuance of common stock (in shares) Document Fiscal Period Focus Gross Proceeds from issuance of common stock us-gaap_StockIssuedDuringPeriodValueShareBasedCompensationGross Legal Matters and Contingencies [Text Block] Document Fiscal Year Focus us-gaap_ComprehensiveIncomeNetOfTax Total comprehensive income Amendment Flag us-gaap_SubleaseIncome Sublease Income Indefinite-lived intangibles Goodwill Goodwill Document Period End Date Legal Entity [Axis] us-gaap_OperatingLeaseCost Operating Lease, Cost Business Combination [Domain] us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount Less: interest Entity File Number Operating lease liabilities us-gaap_OperatingLeaseLiabilityNoncurrent Entity Tax Identification Number Total present value of lease liabilities Business Combination [Axis] Operating lease liabilities Disaggregation of Revenue [Table Text Block] Disaggregation of Revenue [Table] Accrued expenses and other current liabilities Amount of accrued expenses and other current liabilities as of balance sheet date. Entity [Domain] Entity Central Index Key Entity Registrant Name Entity Current Reporting Status Business Combination [Table] Entity Incorporation, State or Country Code Current Fiscal Year End Date Entity Filer Category Entity Shell Company CANADA Entity Emerging Growth Company Entity Small Business gic_BusinessCombinationCashHeldInEscrow Business Combination, Cash Held in Escrow Represents the amount of cash held in escrow from a business combination. us-gaap_OperatingIncomeLoss Operating income from continuing operations us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill Office Lease Extension [Member] Relating to an office lease extension. Leases [Text Block] Represents the entire disclosure for leases. Thereafter Amount of amortization expense for finite-lived intangible asset expected to be recognized after fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Excludes goodwill and capitalized cost for software to be sold, leased, or marketed. Equipment Service Provider [Member] Relating to an equipment service provider. Less: Undistributed net income reallocated to participating securities Amount of undistributed earnings (loss) from continuing operations reallocated to participating securities for basic earnings (loss) per share or per unit calculation under two-class method. Indoff [Member] Relating to Indoff. us-gaap_BusinessCombinationConsiderationTransferred1 Business Combination, Consideration Transferred Other comprehensive income: Entity Address, State or Province Intangible Asset, Finite-Lived, Class [Axis] Statement of Stockholders' Equity [Abstract] Entity Address, City or Town Statement of Comprehensive Income [Abstract] Operating and finance leases Weighted average discount rate for operating and finance lease calculated at point in time. Intangible Asset, Finite-Lived, Class [Domain] Retained earnings ROU assets obtained in exchange for operating and finance lease obligations (in millions) Amount of increase in right-of-use asset obtained in exchange for operating and finance lease liability. Entity Address, Address Line One Statement of Cash Flows [Abstract] Operating and finance leases (years) (Year) Weighted average remaining lease term for operating and finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. City Area Code Share Repurchase Program [Member] Relating to the share repurchase program. us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation Payment of payroll taxes on stock-based compensation through shares withheld Change in cumulative translation adjustment Foreign currency translation adjustments Local Phone Number Entity Address, Postal Zip Code Revenue from Contract with Customer [Text Block] gic_LineOfCreditFacilityCollateralAmount Line of Credit Facility, Collateral, Amount The amount of collateral pledged to a line of credit facility. gic_DebtInstrumentCovenantPercentageOfAccountsReceivableAndInventoryLimitation Debt Instrument, Covenant, Percentage of Accounts Receivable and Inventory Limitation Represents the limitation percentage of accounts receivable and inventory as part of a debt covenant. Accrued expenses, other current liabilities and other liabilities gic_DebtInstrumentCovenantPercentageOfNetOrderlyLiquidationValue Debt Instrument, Covenant, Percentage of Net Orderly Liquidation Value Represents the percentage of net orderly liquidation value as part of a debt covenant. Long-Term Debt, Type [Domain] Shareholders’ equity: Title of 12(b) Security Equity Components [Axis] Security Exchange Name Trading Symbol us-gaap_ProceedsFromStockOptionsExercised Proceeds from issuance of common stock Class of Stock [Axis] Equity Component [Domain] us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill AOCI Attributable to Parent [Member] Entity Common Stock, Shares Outstanding Additional Paid-in Capital [Member] Retained Earnings [Member] Earnings Per Share [Text Block] Cost of sales Weighted average common and common equivalent shares: Property, plant and equipment, net Current period provision Provision for credit losses Deferred income taxes Denominator: Common stock, par value (in dollars per share) Stock-based compensation expense Intangible Asset and Goodwill [Text Block] Undistributed and distributed net income available to common shareholders us-gaap_NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic Undistributed and distributed net income available to common shareholders us-gaap_Assets Total assets Cash and cash equivalents Geographical [Domain] Geographical [Axis] Fair Value Disclosures [Text Block] Add: Undistributed net income allocated to participating securities Less: Undistributed net income available to participating securities Supplemental disclosures of non-cash investing and financing activities: Net income from discontinued operations, net of tax Current liabilities: us-gaap_AllowanceForDoubtfulAccountsReceivable Balance Balance us-gaap_LiabilitiesCurrent Total current liabilities us-gaap_EarningsPerShareDiluted Diluted (in dollars per share) us-gaap_ContractWithCustomerLiability Contract with Customer, Liability us-gaap_LettersOfCreditOutstandingAmount Letters of Credit Outstanding, Amount Other costs Treasury Stock [Text Block] Accounts receivable, net Depreciation and amortization us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation Stock withheld for employee taxes Accounts and Financing Receivables [Table] Lease, Cost [Table Text Block] Customer Lists [Member] Other Commitments [Table] Net cash provided by operating activities from discontinued operations Intangible Asset, Finite-Lived [Table Text Block] Accumulated other comprehensive income Intangible Asset, Finite-Lived [Table] Accumulated amortization us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired Acquisition Inventories Basis of Accounting [Text Block] us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest Income from continuing operations before income taxes Business Combination [Text Block] Additional paid-in capital Debt Disclosure [Text Block] us-gaap_StockholdersEquity Total shareholders’ equity Balances Balances Prepaid expenses and other current assets Issuance of shares under employee stock purchase plan us-gaap_PaymentsOfDividends Dividends paid us-gaap_PaymentsToAcquirePropertyPlantAndEquipment Purchases of property, plant and equipment UNITED STATES us-gaap_DistributedEarnings Less: Distributed net income available to participating securities Consolidation, Less-than-Wholly-Owned Subsidiary, Parent Ownership Interest, Effect of Change [Table] Current assets: Operating lease right-of-use assets us-gaap_AssetsCurrent Total current assets Other liabilities Issuance of restricted stock Issuance of shares under employee stock purchase plan (in shares) ecd_Rule10b51ArrTrmntdFlag Rule 10b5-1 Arrangement Terminated [Flag] Net sales ecd_Rule10b51ArrAdoptedFlag Rule 10b5-1 Arrangement Adopted [Flag] us-gaap_GrossProfit Gross profit Credit Loss, Financial Instrument [Text Block] Goodwill [Table] Commitments and contingencies