Equity Components [Axis] Preferred Stock [Member] Common Stock [Member] Capital Contributed in Excess of Par Value [Member] Business Acquisition [Axis] Good Times Drive Thru Inc. [Member] Antidilutive Securities [Axis] Stock Options [Member] Range [Axis] Maximum [Member] Long-term Debt, Type [Axis] Notes payable with Ally Financial with payments of principal and interest (3.9% to 5%) due monthly [Member] Finite-Lived Intangible Assets by Major Class [Axis] Franchise Rights [Member] Noncompete Agreements [Member] Minimum [Member] Award Type [Axis] Incentive and Non-Statutory Stock Options [Member] Segments [Axis] Good Times Burgers And Frozen Custard Restaurants [Member] Bad Daddys Burger Bar Restaurant [Member] Statement Scenario [Axis] Current [Member] Long Term [Member] Restricted Stock [Member] Bad Daddy's International, LLC [Member] Corporate Segment [Member] Non-Controlling Interest In Partnerships [Member] Accumulated Deficit [Member] Incentive Stock Option [Member] Indefinite-lived Intangible Assets [Axis] Trademarks and Trade Names [Member] Legal Entity [Axis] Debt Instrument [Axis] Cadence Credit Facility [Member] Capital signage leases with Yesco, LLC with payments of principal and interest (8%) [Member] Plan Name [Axis] Two Thousand Eight Equity Incentive Compensation Plan [Member] Four of Bad Daddy's limited liability companies [Member] One of Bad Daddy's limited liability companies [Member] Cadence Bank credit facility [Member] Subsequent Event Type [Axis] Subsequent Event [Member] Document and Entity Information [Abstract] Document Type Amendment Flag Document Period End Date Document Fiscal Year Focus Document Fiscal Period Focus Trading Symbol Entity Registrant Name Entity Central Index Key Current Fiscal Year End Date Entity Well-known Seasoned Issuer Entity Current Reporting Status Entity Voluntary Filers Entity Filer Category Entity Common Stock, Shares Outstanding Entity Public Float Statement of Financial Position [Abstract] ASSETS CURRENT ASSETS: Cash and cash equivalents Receivables Prepaid expenses and other Inventories Notes receivable Total current assets PROPERTY AND EQUIPMENT Land and building Leasehold improvements Fixtures and equipment Property, Plant and Equipment, Gross, Total Less accumulated depreciation and amortization Total net property and equipment Assets held for sale OTHER ASSETS: Notes receivable, net of current portion Deposits and other assets Trademarks Other intangibles, net Goodwill Other Assets, Noncurrent, Total TOTAL ASSETS LIABILITIES AND STOCKHOLDERS' EQUITY CURRENT LIABILITIES: Current maturities of long-term debt and capital lease obligations Accounts payable Deferred income Other accrued liabilities Total current liabilities LONG-TERM LIABILITIES: Maturities of long-term debt and capital lease obligations due after one year Deferred and other liabilities Total long-term liabilities COMMITMENTS AND CONTINGENCIES (Note 5) STOCKHOLDERS' EQUITY: Good Times Restaurants Inc stockholders' equity: Preferred stock, $.01 par value; 5,000,000 shares authorized, 0 shares issued and outstanding, and outstanding as of Sept. 26, 2017 and Sept. 27, 2016, respectively Common stock, $.001 par value; 50,000,000 shares authorized, 12,427,280 and 12,282,625 shares issued and outstanding as of September 26, 2017 and September 27, 2016, respectively Capital contributed in excess of par value Accumulated deficit Total Good Times Restaurants Inc stockholders' equity Non-controlling interests Total stockholders' equity TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY Receivables, allowance for doubtful accounts Current maturities of long-term debt and capital lease obligations, discounts Preferred stock, par value Preferred stock, shares authorized Preferred stock, issued Preferred stock, outstanding Preferred stock, liquidation preference Common stock, par value Common stock, shares authorized Common stock, shares issued Common stock, shares outstanding Income Statement [Abstract] NET REVENUES: Restaurant sales Area development and franchise fees Franchise royalties Total net revenues RESTAURANT OPERATING COSTS: Food and packaging costs Payroll and other employee benefit costs Restaurant occupancy costs Other restaurant operating costs Preopening costs Depreciation and amortization Total restaurant operating costs General and administrative costs Advertising costs Acquisition costs Franchise costs Asset impairment costs (Gain) loss on restaurant asset sale LOSS FROM OPERATIONS OTHER INCOME (EXPENSES): Interest income Interest expense Debt extinguishment costs Other expense Affiliate investment loss Total other expenses, net NET LOSS Income attributable to non-controlling interests NET LOSS ATTRIBUTABLE TO COMMON SHAREHOLDERS BASIC AND DILUTED LOSS PER SHARE: Net loss attributable to common shareholders WEIGHTED AVERAGE COMMON SHARES OUTSTANDING Basic and Diluted Basic Diluted Statement [Table] Statement [Line Items] BALANCES BALANCES, shares Stock issuance expense Stock sale Stock sale, shares Stock based compensation cost Warrant exercise Warrant exercise, shares Warrant exercise-costs Restricted stock grant vesting Stock option exercise Stock option exercise, shares Non-controlling interests: Income Contributions Distributions Acquired through acquisition Net Loss attributable to Good Times Restaurants Inc. and comprehensive loss Preferred stock dividends BALANCES BALANCES, shares Statement of Cash Flows [Abstract] CASH FLOWS FROM OPERATING ACTIVITIES: Net Loss Adjustments to reconcile net loss to net cash provided by operating activities: Depreciation and amortization Accretion of deferred rent Amortization of lease incentive obligation (Gain) loss on disposal of assets Affiliate investment loss Stock based compensation expense Changes in operating assets and liabilities: (Increase) decrease in: Other receivables Inventories Deposits and other assets (Decrease) increase in: Accounts payable Deferred liabilities Accrued and other liabilities Net cash provided by operating activities CASH FLOWS FROM INVESTING ACTIVITIES: Payments for the purchase of property and equipment Proceeds from sale leaseback transactions Payment of the purchase of non-controlling interest Proceeds from sale of assets Payments received on loans to franchisees and to others Net cash used in investing activities CASH FLOWS FROM FINANCING ACTIVITIES: Principal payments on notes payable, capital leases, and long-term debt Borrowings on notes payable and long-term debt Proceeds from stock sales Net proceeds from warrant exercises Proceeds from stock option exercises Contributions from non-controlling interests Distributions to non-controlling interests Net cash (used in) provided by financing activities (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS CASH AND CASH EQUIVALENTS, beginning of year CASH AND CASH EQUIVALENTS, end of year SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION: Cash paid for interest Non-cash additions of property and equipment Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization and Summary of Significant Accounting Policies Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Debt and Capital Lease Obligations [Abstract] Debt and Capital Leases Accrued Liabilities and Other Liabilities [Abstract] Other Accrued Liabilities Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Income Tax Disclosure [Abstract] Income Taxes Stockholders' Equity Note [Abstract] Stockholders' Equity Retirement Benefits [Abstract] Retirement Plan Segment Reporting [Abstract] Segment Reporting Subsequent Events [Abstract] Subsequent Events Organization Fiscal Year Principles of Consolidation Basis of Presentation Reclassification Advertising Costs Accounting Estimates Cash and Cash Equivalents Accounts Receivable Inventories Property and Equipment Trademarks Goodwill Impairment of Long-Lived Assets Sales of Restaurants and Restaurant Equity Interests Deferred Liabilities Revenue Recognition Preopening Costs Franchise and Area Development Fees Income Taxes Net Income (Loss) Per Common Share Financial Instruments and Concentrations of Credit Risk Comprehensive Income (Loss) Stock-Based Compensation Variable Interest Entities Fair Value of Financial Instruments Non-controlling Interests Recent Accounting Pronouncements Schedule of Goodwill and Intangible Assets Schedule of Estimated Aggregate Future Amortization Expense For Finite-Lived Intangible Assets Schedule of Debt and Capital Leases Schedule of Principal Payments of Debt Schedule of Other Accrued Liabilities Summary of Operating Lease Activities Schedule of Future Minimum Rental Commitments Schedule of Deferred Tax Assets and Liabilities Schedule of Income Tax Expense Schedule of Public Offering Schedule of Weighted Average Assumptions Used to Estimate Fair Value of Stock Option Grants Schedule of Stock Option Activity under Share Based Compensation Plan Schedule of Non-vested Restricted Stock Activity Schedule of Warrant Activity Schedule of Noncontrolling Interest Schedule of Reportable Segments Organization And Summary Of Significant Accounting Policies [Table] Organization And Summary Of Significant Accounting Policies [Line Items] Bad Daddy's restaurant in North Carolina [Member] Real Estate Property Ownership [Axis] Related Party [Axis] Scenario [Axis] Class of Stock [Axis] Sale of Stock [Axis] Ownership interest Advertising expenses Investment in affiliate, payment Losses in connection with the sale of restaurants Lease liability FDIC insured limit Estimated useful lives Assets held for sale Repayment of notes payable Deferred rent Lease incentive obligation Other long term liabilities Deferred gain on sale of building and improvements Shares with anti-dilutive effect excluded from the computation of Diluted EPS Notes receivable Franchise receivables Due from affiliate Lease incentive Receivable from advertising cooperative fund Proceeds from sale leaseback transaction Amortization of Intangible Assets Schedule of Finite-Lived Intangible Assets [Table] Finite-Lived Intangible Assets [Line Items] Gross Carrying Amount Accumulated Amortization Net Carrying Amount Schedule of Indefinite-Lived Intangible Assets [Table] Indefinite-lived Intangible Assets [Line Items] Indefinite-Lived Intangible Assets (Excluding Goodwill) Intangible assets, gross carrying amount Intangible Assets, Net (Excluding Goodwill) Goodwill, Gross Goodwill, Impaired, Accumulated Impairment Loss Goodwill Remainder of 2017 2018 2019 2020 2021 2022 Thereafter Schedule of Long-term Debt Instruments [Table] Debt Instrument [Line Items] Property, Plant and Equipment, Type [Axis] Loan Agreement, amount Loan Agreement, amount outstanding Loan agreement, increase amount Interest rate Weighted average interest rate Interest expense Interest rate description Payment of debt issuance costs Maturity date Notes payable Capital signage leases with Yesco, LLC with payments of principal and interest (8%) due monthly. Unamortized note discount related to warrants issued in connection with note payable with PFGI II, LLC Debt and Capital Leases Less current portion Long term portion 2018 2019 2020 2021 2022 Thereafter Long-term Debt, Total Wages and other employee benefits Taxes, other than income tax Other Total Schedule of Operating Leased Assets [Table] Operating Leased Assets [Line Items] Term of operating leases Contingent rent Lease Expiration Date Net commitments outstanding Minimum rentals Less sublease rentals Net rent paid 2018 2019 2020 2021 2022 Thereafter Total Less sublease rentals Operating Leases Future Minimum Payments Due, Net Schedule Of Deferred Income Tax Assets And Liabilities [Table] Schedule Of Deferred Income Tax Assets And Liabilities [Line Items] Deferred assets (liabilities): Tax effect of net operating loss carry-forward General business credits Partnership/Joint Venture basis differences Deferred revenue Property and equipment basis differences Property and equipment basis differences Intangibles basis differences Other accrued liability and asset difference Net deferred tax assets Less valuation allowance Net deferred tax assets Effect of increase in valuation allowance Total expense (benefit) computed by applying the U.S. Statutory rate (35%) State income tax, net of federal tax benefit FICA/WOTC tax credits Expiration of net operating loss carry-forward Effect of change in valuation allowance Permanent differences Other Provision for income taxes U.S. statutory rate Operating Loss Carryforwards [Table] Operating Loss Carryforwards [Line Items] Income Tax Authority [Axis] Net operating loss carry forwards Operating Loss Carryforwards, Expiration year Operating loss carry-forwards utilization limit General business tax credits General business tax credits expiration year Schedule Of Stockholders Equity [Table] Schedule Of Stockholders Equity [Line Items] Counterparty Name [Axis] Class of Warrant or Right [Axis] Issuance of common shares and warrants in public offering, shares Shares authorized to issue under plan Stock based compensation expense Shares available for future grants Stock options granted, shares Stock options granted, exercise price Stock options granted, per-share weighted average fair value Restricted stock granted, shares Restricted stock granted, weighted average grant date fair value per share Vesting period Remaining total unrecognized compensation cost related to unvested stock-based arrangements Employee service share-based compensation, nonvested awards, total compensation cost not yet recognized, period for recognition Aggregate intrinsic value of outstanding options Aggregate intrinsic value of exercisable options Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Expected term (years) Expected volatility Expected volatility, minimum Expected volatility, maximum Risk-free interest rate Risk free interest rate, minimum Risk free interest rate, maximum Expected dividends Shares Outstanding-beg of year Options granted Options exercised Forfeited Expired Outstanding Sept 26, 2017 Exercisable Sept 26, 2017 Weighted Average Exercise Price Outstanding-beg of year Options granted Options exercised Forfeited Expired Outstanding Sept 26, 2017 Exercisable Sept 26, 2017 Weighted Average Remaining Contractual Life (Yrs.) Outstanding Sept 26, 2017 Exercisable Sept 26, 2017 Shares Non-vested shares at beg of year Granted Forfeited Vested Non-vested shares at Sept 26, 2017 Grant Date Fair Value Per Share Non-vested shares at beg of year Granted Forfeited Vested Non-vested shares at Sept 26, 2017 Noncontrolling Interest [Table] Noncontrolling Interest [Line Items] Balance at September 27, 2016 Acquisition of non-controlling interest Balance at September 26, 2017 Percentage of gross pay matched by employer on dollar-for-dollar basis Percentage of each dollar of employee contributions matched by employer Maximum employee contribution percentage Matching contributions Schedule of Segment Reporting Information, by Segment [Table] Segment Reporting Information [Line Items] Revenues Income (loss) from operations Capital Expenditures Property & Equipment, net Subsequent Event [Table] Subsequent Event [Line Items] Proceeds from sale leaseback transaction Amount of decrease in additional paid in capital (APIC) resulting from direct costs associated with issuing stock due to the exercise of warrants. Includes, but is not limited to, legal and accounting fees and direct costs associated with stock issues under a shelf registration. Amortization of lease incentive obligation. Bad Daddy's Franchise Development, LLC [Member] Bad Daddy's Burger Bar Restaurant [Member]. Bad Daddy''s International, LLC [Member] Cadence Credit Facility [Member] Class A Warrants [Member]. Class B Warrants [Member]. Total amount to be received by an entity from a vendor under a cooperative advertising arrangement. Deferred Rent And Other Long Term Liabilities Noncurrent Deferred Tax Asset Liability Current Member Deferred Tax Asset Liability Noncurrent Member Noncurrent Deposits And Other Assets. Document And Entity Information [Abstract] Net carrying amount after accumulated amortization as of the balance sheet date for the rights acquired through registration of a trademark to gain or protect exclusive use of a business name, symbol or other device or style for a specified period of time. First Installment [Member] Fiscal 2015 Incentive Stock Options [Member]. Fiscal Twenty Fifteen Non Statutory Stock Options [Member]. Fiscal 2014 Incentive Stock Options [Member]. General business tax credits expiration year. Good Times Burgers And Frozen Custard Restaurants [Member]. Good Times Drive Thru Inc. [Member]. Heathcote Capital Llc [Member] Incentive Stock Option [Member] Increase (Decrease) In Intangible Assets, Deposits And Other Carrying amount as of the balance sheet date of real estate and buildings held for productive use. This excludes land and buildings held for sale. Non Statutory Stock Options [Member]. Tabular disclosure of noncontrolling interests. Disclosure of accounting policy for non-controlling interests. Note Payable Four [Member]. Note Payable One [Member]. Note Payable Three [Member]. Disclosure of accounting policy for restaurant opening costs. For leases having an initial or remaining non-cancelable letter-terms in excess of one year, required rental payments due within the remaining current year of the balance sheet date relating to leases defined as operating. Amount of required minimum rental payments for leases less income for future rental payments receivable on noncancelable subleasing arrangements having an initial or remaining non-cancelable letter-terms in excess of one year. Operating Loss Carryforwards, Expiration Year Operating Loss Carryforwards Subject To Limitation Organization And Summary Of Significant Accounting Policies [Line Items]. Organization And Summary Of Significant Accounting Policies [Table]. Organization Policy Text Block. Net carrying amount after accumulated amortization as of the balance sheet date of intangible assets not otherwise specified in the taxonomy having a reasonably expected period of economic benefit. Ownership Interest Promissory Note [Member]. Representative Warrants [Member]. Schedule of Deferred Income Tax Assets and Liabilities [Line Items] Schedule of Deferred Income Tax Assets and Liabilities [Table] Schedule Of Stockholders Equity [Line Items]. Schedule Of Stockholders Equity [Table]. Second Installment [Member] Share-based Compensation Arrangement by Share-based Payment Award, Options, Weighted Average Remaining Contractual Term [Abstract] Number of warrants exercised during the current period. Value of stock issued as a result of the exercise of warrants. Two Thousand Eight Equity Incentive Compensation Plan [Member]. Underwriters [Member] Weighted Average Number Basic And Diluted, Shares Outstanding [Abstract] Four of Bad Daddy's limited liability companies [Member] One of Bad Daddy's limited liability companies [Member] Bad Daddy's restaurant in North Carolina [Member] Cadence Bank credit facility [Member] Cash and Cash Equivalents, at Carrying Value Assets, Current Property, Plant and Equipment, Gross Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Other Assets, Noncurrent Assets Liabilities, Current Liabilities, Noncurrent Stockholders' Equity Attributable to Parent Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Liabilities and Equity Cost of Goods Sold Gain (Loss) on Disposition of Property Plant Equipment Other Nonoperating Expense Nonoperating Income (Expense) Income (Loss) from Continuing Operations, Net of Tax, Attributable to Noncontrolling Interest Earnings Per Share, Basic and Diluted Shares, Outstanding Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs Adjustments To Additional Paid In Capital, Warrant Exercise, Issuance Costs Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Noncontrolling Interest, Increase from Business Combination Preferred Stock Dividends and Other Adjustments Depreciation, Depletion and Amortization, Nonproduction Bad Daddy Franchise Development Llc [Member] Increase (Decrease) in Accounts Receivable and Other Operating Assets Increase (Decrease) in Inventories Increase Decrease In Intangible Assets Deposits And Other Increase (Decrease) in Accounts Payable Net Cash Provided by (Used in) Operating Activities Payments to Acquire Property, Plant, and Equipment Payments to Acquire Interest in Subsidiaries and Affiliates Net Cash Provided by (Used in) Investing Activities Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities Payments of Ordinary Dividends, Noncontrolling Interest Net Cash Provided by (Used in) Financing Activities Cash and Cash Equivalents, Period Increase (Decrease) Accounts Payable and Accrued Liabilities Disclosure [Text Block] Cash and Cash Equivalents, Policy [Policy Text Block] Inventory, Policy [Policy Text Block] Property, Plant and Equipment, Policy [Policy Text Block] Goodwill and Intangible Assets, Intangible Assets, Indefinite-Lived, Policy [Policy Text Block] Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] Deferred Charges, Policy [Policy Text Block] Opening Costs [Policy Text Block] Income Tax, Policy [Policy Text Block] Noncontrolling Interests [Policy Text Block] Disposal Group, Including Discontinued Operation, Assets, Current Financing Receivable, Net Finite-Lived Intangible Assets, Accumulated Amortization Finite-Lived Intangible Assets, Net Intangible Assets, Net (Excluding Goodwill) Debt Instrument, Unamortized Discount Debt and Capital Lease Obligations Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months Long-term Debt, Maturities, Repayments of Principal in Year Two Long-term Debt, Maturities, Repayments of Principal in Year Three Long-term Debt, Maturities, Repayments of Principal in Year Four Long-term Debt, Maturities, Repayments of Principal in Year Five Long-term Debt, Maturities, Repayments of Principal after Year Five Long-term Debt Operating Leases, Rent Expense, Sublease Rentals Operating Leases, Rent Expense, Net Operating Leases, Future Minimum Payments Due, Next Twelve Months Operating Leases, Future Minimum Payments, Due in Two Years Operating Leases, Future Minimum Payments, Due in Three Years Operating Leases, Future Minimum Payments, Due in Four Years Operating Leases, Future Minimum Payments, Due in Five Years Operating Leases, Future Minimum Payments, Due Thereafter Operating Leases, Future Minimum Payments Due Operating Leases, Future Minimum Payments Due, Future Minimum Sublease Rentals Operating Leases Future Minimum Payments Due, Net Deferred Tax Liabilities, Investment in Noncontrolled Affiliates Deferred Tax Liabilities, Property, Plant and Equipment Deferred Tax Liabilities, Intangible Assets Deferred Tax Assets, Gross Deferred Tax Assets, Valuation Allowance Deferred Tax Assets, Net Effective Income Tax Rate Reconciliation, Tax Credit, Other, Amount Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount Income Tax Expense (Benefit) Allocated Share-based Compensation Expense Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Sale Leaseback Transaction, Gross Proceeds, Investing Activities