Cover [Abstract] Entity Registrant Name Entity Central Index Key Document Type Amendment Flag Current Fiscal Year End Date Entity Small Business Entity Shell Company Entity Emerging Growth Company Entity Current Reporting Status Document Period End Date Entity Filer Category Document Fiscal Period Focus Document Fiscal Year Focus Entity Common Stock Shares Outstanding Document Quarterly Report Document Transition Report Entity File Number Entity Incorporation State Country Code Entity Tax Identification Number Entity Address Address Line 1 Entity Address Address Line 2 Entity Address City Or Town Entity Address State Or Province Entity Address Postal Zip Code City Area Code Local Phone Number Security 12b Title Trading Symbol Security Exchange Name Entity Interactive Data Current Entity Address Address Line 3 Class of Stock [Axis] Common Stocks [Member] Warrants [Member] CONDENSED CONSOLIDATED BALANCE SHEETS ASSETS CURRENT ASSETS Cash and cash equivalents Marketable securities Receivables Inventory Inventory - bottled water held for resale Prepaid expenses and other current assets Deferred transaction costs Assets held for sale Total current assets [Assets, Current] PROPERTY, EQUIPMENT AND LEASEHOLD IMPROVEMENTS, NET OPERATING LEASES RIGHT-OF-USE ASSETS NOTE RECEIVABLE FROM UNCONSOLIDATED AFFILIATE, NET GOODWILL INTANGIBLE ASSETS, NET OTHER ASSETS, NET Total assets [Assets] LIABILITIES AND SHAREHOLDERS' EQUITY CURRENT LIABILITIES Accounts payable Current maturities of long-term debt Current operating lease obligations Accrued expenses Total current liabilities [Liabilities, Current] LONG-TERM DEBT, LESS CURRENT PORTION NONCURRENT OPERATING LEASE OBLIGATIONS Total liabilities [Liabilities] COMMITMENTS AND CONTINGENCIES SHAREHOLDERS' EQUITY Preferred stock, $.001 par value, 2,000,000 shares authorized, no shares outstanding at June 28, 2026 and December 28, 2025 Common stock, $.002 par value, 50,000,000 authorized, 6,491,118 and 6,461,118 issued at June 28, 2026 and December 28, 2025, with 6,184,724 and 6,154,724 outstanding at June 28, 2026 and December 28, 2025 Less cost of 306,394 common shares held in Treasury at June 28, 2026 and December 28, 2025 [Treasury Stock, Common, Value] Additional paid-in capital Accumulated deficit Total shareholders' equity [Equity, Attributable to Parent] Total liabilities and shareholders' equity [Liabilities and Equity] Preferred stock, shares par value Preferred stock, shares authorized Preferred stock, shares outstanding Preferred stock, shares issued Common stock, shares par value Common stock, shares authorized Common stock, shares issued Common stock, shares outstanding Treasury stock, shares CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) SALES COSTS AND EXPENSES Restaurant operating expenses Food and paper costs Labor costs Occupancy costs Other operating expenses Depreciation and amortization expenses General and administrative expenses Total costs and expenses [Costs and Expenses] Income (loss) from operations [Operating Income (Loss)] UNREALIZED GAIN ON MARKETABLE SECURITIES REALIZED INVESTMENT GAIN (LOSS) INTEREST AND DIVIDEND INCOME INTEREST EXPENSE [Interest Expense, Operating and Nonoperating] OTHER INCOME (EXPENSE) EQUITY IN NET INCOME (LOSS) OF AFFILIATE INCOME (LOSS) BEFORE TAXES [Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest] INCOME TAX (EXPENSE) BENEFIT NET INCOME (LOSS) [Net Income (Loss) Attributable to Parent] NET INCOME (LOSS) PER COMMON SHARE - Basic NET INCOME (LOSS) PER COMMON SHARE - Diluted WEIGHTED AVERAGE SHARES USED IN COMPUTING PER COMMON SHARE AMOUNTS - Basic PER COMMON SHARE AMOUNTS - Diluted CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS EQUITY (Unaudited) Statement [Table] Statement [Line Items] Statement Equity Components [Axis] Common Stock Additional Paid-In Capital Accumulated (Deficit) Treasury Stock Balance, shares [Shares, Issued] Balance, amount Stock-based compensation Net loss Exercise of stock options, shares Exercise of stock options, amount Balance, shares Balance, amount CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) CASH FLOWS FROM OPERATING ACTIVITIES Net loss [Net Income (Loss), Including Portion Attributable to Noncontrolling Interest] Adjustments to reconcile net loss to net cash Depreciation and amortization Amortization of debt issuance costs included in interest expense Provision for uncollectible loans made to unconsolidated affiliate Stock-based compensation Unrealized gain on marketable securities Realized investment (gain) loss Loss on equity method investment Write down of inventory - bottled water held for sale Non-cash operating lease expense Changes in operating assets and liabilities Receivables [Increase (Decrease) in Receivables] Inventory [Increase (Decrease) in Inventories] Prepaid expenses and other current assets [Increase (Decrease) in Prepaid Expense and Other Assets] Other assets [Increase (Decrease) in Other Operating Assets] Accounts payable [Increase (Decrease) in Accounts Payable] Accrued expenses [Increase (Decrease) in Accrued Liabilities] Net cash provided by operating activities [Cash Provided by (Used in) Operating Activity, Including Discontinued Operation] CASH FLOWS FROM INVESTING ACTIVITIES Purchase of property and equipment [Payments to Acquire Property, Plant, and Equipment] Proceeds from sale of equipment Loans to unconsolidated affiliates [Payments for Advance to Affiliate] Purchase of marketable securities [Payments to Acquire Marketable Securities] Proceeds from the sale of marketable securities Purchase of inventory - bottled water held for resale [Purchase of inventory - bottled water held for resale] Other assets [Other assets] Net cash provided by (used in) investing activities [Cash Provided by (Used in) Investing Activity, Including Discontinued Operation] CASH FLOWS FROM FINANCING ACTIVITIES Proceeds from stock option exercises Principal payments on long-term debt [Repayments of Long-Term Debt] Payment of deferred transaction costs [Payment of Financing and Stock Issuance Costs] Net cash used in financing activities [Cash Provided by (Used in) Financing Activity, Including Discontinued Operation] CHANGE IN CASH AND CASH EQUIVALENTS [Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Excluding Exchange Rate Effect, Including Discontinued Operation] CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD CASH AND CASH EQUIVALENTS, END OF PERIOD SUPPLEMENTAL DISCLOSURES Cash paid for interest Insider Trading Arrangements [Line Items] Rule 10b5-1 Arrangements Adopted [Flag] Rule 10b5-1 Arrangements Terminated [Flag] Non Rule 10b5-1 Arrangements Adopted [Flag] Non Rule 10b5-1 Arrangements Terminated [Flag] SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] INTANGIBLE ASSETS INTANGIBLE ASSETS Intangible Assets Disclosure [Text Block] PROPERTY AND EQUIPMENT PROPERTY AND EQUIPMENT Property, Plant and Equipment Disclosure [Text Block] ACCRUED EXPENSES ACCRUED EXPENSES Accounts Payable and Accrued Liabilities Disclosure [Text Block] LONG TERM DEBT LONG TERM DEBT Long-Term Debt [Text Block] STOCK BASED COMPENSATION STOCK-BASED COMPENSATION LEASES LEASES Lessee, Operating Leases [Text Block] SHAREHOLDERS EQUITY SHAREHOLDERS' EQUITY Equity [Text Block] RELATED PARTY TRANSACTIONS RELATED PARTY TRANSACTIONS Related Party Transactions Disclosure [Text Block] CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] Basis of Presentation Use of Estimates Segment Reporting Termination of Proposed Business Combination with Aero Velocity Fiscal Year Period Cash and Cash Equivalents Equity Method Investments Fair Value Measurements Receivables Accounts Receivable [Policy Text Block] Inventory Inventory, Policy [Policy Text Block] Deferred Transaction Costs Property and Equipment Goodwill and Intangible Assets and Other Assets Asset Held for Sale Income Taxes Per Common Share Amounts Schedule of fair value measurement Schedule of intangible assets Schedule of property and equipment Schedule of accrued expenses Summary of long term debt obligations Schedule of company's stock options Schedule of future minimum operating lease Summary of financial information BDVB Liability Class [Axis] Fair Value Measurement [Member] Level 1 [Member] Common stocks Listed limited partnership units Exchange-traded funds Debt securities Total Exchange-traded funds [Exchange-traded funds] Deferred transaction costs [Deferred Costs, Noncurrent] Valuation allowance Federal and state rate Federal operating tax loss carryforwards Indefinite Lived Intangible Assets By Major Class Axis Incentive Distribution Made To Managing Member Or General Partner Axis Covenant Not To Compete [Member] Trademarks [Member] Original cost Accumulated Amortization Net carrying value Estimated Useful Life (Years) Amortization expense 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 Land Equipment Buildings and leasehold improvements Total property and equipment Accumulated depreciation [Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment] Net Property Plant And Equipment Less - property held for sale Net property and equipment Depreciation expenses Accrued payroll and payroll taxes Accrued sales taxes payable Accrued real estate taxes Accured gift card liability Accrued vacation pay Other accrued expenses Accrued expenses Notes payable to bank Less - unamortized debt issuance costs Less current maturities Total Number of Options, Begining [Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number] Number of Options Granted Number of Options Exercised [Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Exercised] Number of Options Canceled, forfeited, or expired [Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period] Number of Options, Ending Numbeer of Options exercisable [Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number] Weighted Average Exercise Price, Begining [Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price] Weighted Average Exercise Price Granted Weighted Average Exercise Price Exercised Weighted Average Exercise Price Canceled, forfeited, or expired Weighted Average Exercise Price, Ending Weighted Average Exercise Price exercisable [Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price] Weighted Average Remaining Contract term (In Years) beg of the period Weighted Average Remaining Contract term (In Years) end of period Weighted Average Remaining Contract term (In Years), Exercisable Weighted Average Remaining Contract term (In Years), Cancelled, forfeited, or expired Aggregate Intrinsic value outstanding, Begining [Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value] Aggregate Intrinsic value outstanding, Ending Aggregate Intrinsic value exercisable [Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value] Related Party Transaction [Axis] Plan Name [Axis] Employees And Director [Member] Stock based compensatisation 2024 2019 Plan Description of option granted Description of consultant shares purchase Descrition of consulting agreement Stock options granted Stock based compensation Shares available for a grant Descrition of annual installments agreement Granted Options to purchase Purchase price per share Shares forfeited Trading days 2026 remaining 2027 [Lessee, Operating Lease, Liability, to be Paid, Year One] 2028 [Lessee, Operating Lease, Liability, to be Paid, Year Two] 2029 [Lessee, Operating Lease, Liability, to be Paid, Year Three] 2030 [Lessee, Operating Lease, Liability, to be Paid, Year Four] Thearafter Total future minimum lease payments Less - interest [Lessee, Operating Lease, Liability, Undiscounted Excess Amount] Present value of lease obligation Business Acquisition Axis Keegan Assets [Member] PIE Assets [Member] VBG Assets [Member] Schnitzel Haus [Member] Net lease liability Impairment charge Weighted average remaining lease term Total operating lease expense Cash paid for leases Variable expenses Monthly rent Lease term Restaurant space Incremental borrowing rate Present value discounted Operating lease obligation Annual escalation Monthly lease payment Monthly base rent Antidilutive Securities [Axis] 2024 Share Repurchase Program [Member] Underwriting Agreement [Member] Maxim [Member] Common stock, par value Stock repurchase Additional share purchase Net proceed from sales of common stock and warrants Proceed from issuance of common stock warrants Change in Accounting Estimate by Type [Axis] Bagger Dave's [Member] Total current assets Total noncurrent assets, net Total assets Current liabilities Total noncurrent liabilities Liabilities Shareholders' equity Total liabilities and shareholders' equity Revenue Depreciation and amortization [Other Depreciation and Amortization] Costs and Expenses Operating loss Gain on sale of assets Net income (loss) Schedule Of Equity Method Investment Equity Method Investee Name Axis Award Date [Axis] NGI [Member] December 26 2025 [Member] Ownership percentage Common shares Acquired amount Equity securities, cost Impairment charge Proceeds from sale of leasehold interest Expected gain on sale of leasehold interest Investment, carrying value Write-down inventory Inventory net realizable value Maximum borrowing capacity Note receivable Increase in notes receivable Aero Velocity Merger Termination [Member] Village Bier Garten Lease Litigation [Member] Right to use asset Consulting fees Restaurant space Lease term Annual escalation Monthly lease payment Merger termination, description