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Net profit (loss) attributable to Cal-Maine Foods, Inc. Net Income (Loss) Attributable to Parent Net Income (Loss) Net income (loss) attributable to Cal-Maine Foods, Inc. 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Flows [Abstract] Condensed Consolidated Statements of Comprehensive Income [Abstract] Consolidated Statements of Comprehensive Income (Loss) [Abstract] Consolidated Statements of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Share-based Payment Arrangement [Policy Text Block] Stock Based Compensation Equity [Abstract] Stockholders' Equity Note [Abstract] Stockholders' Equity Note Disclosure [Text Block] Equity Subsequent Event Type [Axis] Subsequent Event [Line Items] Subsequent Event [Table] Subsequent Event Type [Domain] Total current assets Assets, Current Current assets: Assets, Current [Abstract] Diluted (in shares) Weighted-average common shares outstanding, diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Effect of dilutive restricted shares (in shares) Weighted Average Number Diluted Shares Outstanding Adjustment Basic (in shares) Weighted-average common shares outstanding, basic (in shares) Weighted Average Number of 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treasury at cost - 26,024 shares at August 31, 2024 and 26,022 shares at June 1, 2024 Treasury Stock, Value Purchases of investment securities Purchases of investment securities Class A Convertible Common Stock [Member] Class A Common Stock [Member] Class A [Member] Other long-term assets Other Assets, Noncurrent Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount Antidilutive restricted shares Net income per common share: Net Income per Common Share [Abstract] Net Income (Loss) per Common Share Earnings Per Share, Policy [Policy Text Block] Debt Securities, Available-for-sale [Line Items] Class of Stock [Axis] Class of Stock [Axis] Common stock, par value per share (in dollars per share) Common Stock, Par or Stated Value Per Share Total Cal-Maine Foods, Inc. stockholders' equity Beginning balance Ending balance Total equity Stockholders' equity Income tax expense Income tax expense (benefit) Income Tax Expense (Benefit) Income tax (benefit) expense Dividends per common share (in dollars per share) Common Stock, Dividends, Per Share, Cash Paid Minority Interest Decrease From Redemptions Acquisition of noncontrolling interest in Texas Egg Products, LLC Reclass of equity portion of Texas Egg Products, LLC in connection with acquisition Equity Components [Axis] Equity Components [Axis] Paid In Capital [Member] Additional Paid-in Capital [Member] Retained Earnings [Member] Retained Earnings [Member] Accumulated Other Comprehensive Income (Loss) [Member] AOCI Attributable to Parent [Member] Accum. Other Comp. Loss [Member] Equity Component [Domain] Equity Component [Domain] Dividends Payable Stockholders' Equity, Policy [Policy Text Block] Loss Contingencies Commitments and Contingencies, Policy [Policy Text Block] Denominator Dilutive Securities, Effect on Basic Earnings Per Share [Abstract] Loss From Catastrophes Loss on involuntary conversions Inventory Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory Property, plant and equipment Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Total identifiable net assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Net Income per Common Share Earnings Per Share [Text Block] Profit Loss Net income Net income (loss) Net income Net profit (loss) attributable to Cal-Maine Foods, Inc. 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Noncontrolling Interest [Member] Noncontrolling Interest [Member] Acquisition Business Combination Disclosure [Text Block] Commitments and contingencies - see Note 10 Commitments and Contingencies Nature of Operations Accounts Payable Current Accounts payable Dividends Payable Current Dividends payable Employee Related Liabilities Current Accrued wages and benefits Other comprehensive income (loss), before tax: Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent [Abstract] Business Combination Recognized Identifiable Assets Acquired Goodwill And Liabilities Assumed Net Total identifiable net assets and goodwill Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Assets measured at fair value Assets, Fair Value Disclosure Liabilities Fair Value Disclosure Liabilities measured at fair value Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Damages sought Loss Contingency, Damages Sought, Value Accounts Payable And Other Accrued Liabilities Current Accrued expenses and other liabilities Other Operating Activities Cash Flow Statement Other adjustments, net Other adjustments, net Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation By Liability Class [Domain] Number Of Stores Number of retail stores Investments, Debt and Equity Securities [Abstract] Investments Securities [Abstract] Patronage Source Earnings Patronage dividends Business Combinations [Abstract] Acquisition [Abstract] Fair Value By Liability Class [Axis] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Summary of Consideration Paid for Fassio and Amounts of Assets Acquired and Liabilities Assumed Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Schedule Of Stockholders Equity [Table Text Block] Summary of Equity Activity Computation of Basic and Diluted Net Income Per Share Schedule of Weighted Average Number of Shares [Table Text Block] Schedule of Inventories Schedule of Inventory, Current [Table Text Block] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies [Abstract] Fair Value Disclosures [Abstract] Fair Value Measurements [Abstract] Subsequent Events [Text Block] Subsequent Events Inventory Disclosure [Abstract] Inventories [Abstract] Summary of Equity Award Activity Share-based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block] Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Stock Based Compensation [Abstract] Fiscal Year Fiscal Period, Policy [Policy Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis 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by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Weighted Average Grant Date Fair Value, Forfeited (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Unrecognized compensation expense Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount Financial Instrument [Axis] Financial Instrument [Axis] Litigation Status [Axis] Litigation Status [Axis] Litigation Status [Domain] Litigation Status [Domain] Pending Litigation Pending Litigation [Member] Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] Subsequent Event [Member] Intangible assets estimated useful life Finite-Lived Intangible Asset, Useful Life New Accounting Pronouncements and Policies New Accounting Pronouncements, Policy [Policy Text Block] Reclassification Reclassification, Comparability Adjustment [Policy Text Block] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Property, plant and equipment useful life Property, Plant and Equipment, Useful Life Within one year Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Fair Value 1-5 years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Fair Value Vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Weighted average period of unrecognized compensation expense Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Business Acquisition Effective Date Of Acquisition 1 Effective date of acquisition Purchase Obligation Purchase obligation Area of land Area of land, inventories and an egg products breaking facility Concentration risk, percentage Concentration Risk, Percentage Concentration Risk, Percentage Loss Contingency Accrual Provision Settlement accrual Unrealized holding gain on available-for-sale securities, net of reclassification adjustments OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment, before Tax Other comprehensive Income, net of tax Other comprehensive loss, net of tax Other Comprehensive Income (Loss), Net of Tax Other comprehensive income (loss), net of tax Fair Value Measurement Policy [Policy Text Block] Fair Value Measurement Investment Type [Axis] Investment Type [Axis] Municipal Bonds [Member] Municipal Bonds [Member] U S Government Agencies Shortterm Debt Securities [Member] US Government and Agency Obligations [Member] U S Treasury Bill Securities [Member] Treasury Bills [Member] Contributions Noncontrolling Interest, Increase from Subsidiary Equity Issuance Accrued Self Insurance Self Insurance Reserve [Policy Text Block] Liabilities assumed Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Other Noncurrent Assets Other long-term assets Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Intangible Assets Other Than Goodwill Intangible assets Business combination, consideration transferred Business combination, consideration transferred Total estimated purchase price Business Combination Consideration Transferred Liabilities Incurred Fair value of contingent consideration Fiscal period duration Deferred income taxes, net Deferred Income Tax Liabilities, Net Deferred income taxes Treasury Stock [Member] Treasury Stock, Common [Member] Common stock in treasury (in shares) Treasury Stock, Common, Shares Mutual Funds [Member] Mutual Funds [Member] Disaggregation of Revenue Disaggregation of Revenue [Table Text Block] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Revenue from Contract with Customer [Abstract] Revenue from Contracts with Customers [Abstract] Revenue from Contracts with Customers Revenue from Contract with Customer [Text Block] Revenue From Contract With Customer Excluding Assessed Tax Net sales Net change in cash and cash equivalents Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Principal payments on finance lease Finance Lease, Principal Payments Leases Lessee, Leases [Policy Text Block] Litigation Settlement Amount Awarded To Other Party Amount awarded to other party Initial operating lease terms Lessee, Operating Lease, Term of Contract Revenue Recognition Revenue from Contract with Customer [Policy Text Block] Schedule of Available-for-sale Securities [Table] Schedule of Available-for-sale Securities [Table] Debt Securities Available For Sale Allowance For Credit Loss Allowance for credit losses Finance lease, remaining terms Lessee, Finance Lease, Remaining Lease Term Asset Acquisition [Axis] Asset Acquisition [Domain] Other Investees [Member] Crepini Foods LLC [Member] Cover [Abstract] Cover [Abstract] Document Type Document Type Document Annual Report Document Quarterly Report Document Transition Report Document Transition Report Document Fin Stmt Error Correction Flag Entity Interactive Data Current Entity Interactive Data Current Amendment Flag Amendment Flag ICFR Auditor Attestation Flag ICFR Auditor Attestation Flag Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Document Period End Date Document Period End Date Legal Entity [Axis] Entity [Domain] Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Entity File Number Entity File Number Entity Tax Identification Number Entity Tax Identification Number Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Current Fiscal Year End Date Current Fiscal Year End Date Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Voluntary Filers Entity Current Reporting Status Entity Current Reporting Status Entity Shell Company Entity Shell Company Entity Filer Category Entity Filer Category Entity Small Business Entity Small Business Entity Emerging Growth Company Entity Emerging Growth Company Entity Public Float Entity Public Float Entity Address, Address Line One Entity Address, Address Line One Entity Address Address Line 2 Entity Address, City or Town Entity Address, City or Town Entity Address, State or Province Entity Address, State or Province Entity Address, Postal Zip Code Entity Address, Postal Zip Code City Area Code City Area Code Local Phone Number Local Phone Number Title of 12(b) Security Title of 12(b) Security Trading Symbol Trading Symbol Security Exchange Name Security Exchange Name Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Documents Incorporated by Reference Documents Incorporated by Reference [Text Block] Auditor Name Auditor Location Auditor Firm Id Equity Method Investee, Name [Domain] Investment, Name [Domain] Restatement Adjustment [Member] Impact of ASC 326 [Member] Investment, Name [Axis] Investment, Name [Axis] Range [Axis] Statistical Measurement [Axis] Range [Domain] Statistical Measurement [Domain] Litigation Case [Domain] Litigation Case [Domain] Litigation Case [Axis] Litigation Case [Axis] Ownership [Axis] Ownership [Domain] Product and Service [Domain] Product and Service [Domain] Product and Service [Axis] Product and Service [Axis] Restatement [Axis] Restatement [Domain] Cumulative Effect Period Of Adoption Adjusted Balance [Member] Adjusted Balance [Member] Flocks, net of amortization Agricultural Related Inventory, Flocks Agricultural related inventory, flocks, net of accumulated amortization. Egg products [Member] Egg Products [Member] Egg Products [Member] Eggs and egg products Agricultural Related Inventory, Eggs Agricultural Related Inventory, Eggs Schedule of Cost of Sales Amortization and Mortality Schedule Of Cost Of Sales Amortization And Mortality [Table Text Block] Schedule Of Cost Of Sales Amortization And Mortality. Specialty shell egg sales [Member] Specialty Shell Egg Sales [Member] Specialty Shell Egg Sales [Member] Percentage of net income loss used to compute accrued dividends Percentage Of Net Income Loss Used To Compute Accrued Dividends Percentage Of Net Income Loss Used To Compute Accrued Dividends Bell et al. v. Cal-Maine Foods et al. [Member] Bell et al. v. Cal-Maine Foods et al. [Member] Bell et al. v. Cal-Maine Foods et al. [Member] Fraser et al. v. Cal-Maine Foods, Inc. et al. [Member] Fraser et al. v. Cal-Maine Foods, Inc. et al. [Member] Fraser et al. v. Cal-Maine Foods, Inc. et al. [Member] Agricultural Related Inventory, Layers Agricultural Related Inventory, Layers Layers Weighted average shares outstanding: Weighted average shares outstanding [Abstract] Weighted average shares outstanding [Abstract] 2012 Omnibus Long-Term Incentive Plan [Member] Two Thousand Twelve Omnibus Long Term Incentive Plan [Member] Two Thousand Twelve Omnibus Long-Term Incentive Plan [Member] Conventional shell egg sales [Member] Non-Specialty Shell Egg Sales [Member] Non-Specialty Shell Egg Sales [Member] Purchase of common stock by treasury Proceeds From (Purchase of) Sale Of Treasury Stock Net of Stock Issued During Period, Restricted Stock Award Proceeds From (Purchase of) Sale Of Treasury Stock Net of Stock Issued During Period, Restricted Stock Award Pullets and breeders Agricultural Related Inventory, Pullets and Breeders Agricultural Related Inventory, Pullets and Breeders Other [Member] Other [Member] Other [Member] State of Texas v. Cal-Maine Foods, Inc. d/b/a Wharton; and Wharton County Foods, LLC [Member] State of Texas v. Cal-Maine Foods, Inc. d/b/a Wharton; and Wharton County Foods, LLC [Member] State of Texas v. Cal-Maine Foods, Inc. d/b/a Wharton; and Wharton County Foods, LLC [Member] Treasury Stock Treasury Stock, Policy [Policy Text Block] Treasury Stock, Policy [Policy Text Block] Benton County Foods [Member] Proceeds From Sale And Maturity Of Available For Sale Securities, Current Amount of cash inflow from sale, maturity, prepayment and call of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current. Proceeds from sale of available-for-sale securities, current Proceeds From Sale And Maturity Of Available For Sale Securities Noncurrent Proceeds from sale of available-for-sale securities, noncurrent Amount of cash inflow from sale, maturity, prepayment and call of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as noncurrent. Debt Securities, Available For Sale, Current, Realized Gain Gross realized gains on sales of available-for-sale securities, current Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current. Debt Securities, Available For Sale, Noncurrent, Realized Gain Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as noncurrent. Gross realized gains on sales of available-for-sale securities, noncurrent Debt Securities, Available For Sale, Current, Realized Loss Gross realized losses on sales of available-for-sale securities, current Amount of realized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current. Debt Securities, Available For Sale, Noncurrent, Realized Loss Amount of realized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as noncurrent. Gross realized losses on sales of available-for-sale securities, noncurrent Allowance For Doubtful Accounts As Percentage Of Receivables Aged Over 60 Days Allowance For Doubtful Accounts As Percentage Of Receivables Aged Over 60 Days Allowance for doubtful accounts as percentage of receivables aged over 60 days Number Of Major Customers Number Of Major Customers Number of major customers Flock Costs, Cost Accumulation Period Flock costs, cost accumulation period Flock Costs, Cost Accumulation Period Available For Sale Debt Securities, Current, Accumulated Gross Unrealized Gain, Before Tax Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), clasified as current. Gains in Accumulated Other Comprehensive Income, Current Unrealized Gains, Current Available For Sale Debt Securities, Noncurrent, Accumulated Gross Unrealized Gain, Before Tax Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), clasified as noncurrent. Unrealized Gains, Noncurrent Available For Sale Debt Securities, Current, Accumulated Gross Unrealized Loss, Before Tax Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current. Unrealized Losses, Current Available For Sale Debt Securities, Noncurrent, Accumulated Gross Unrealized Loss, Before Tax Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as noncurrent. Unrealized Losses, Noncurrent Available For Sale Debt Securities, Current, Amortized Cost Basis Amortized Cost, Current Available For Sale Debt Securities, Noncurrent, Amortized Cost Basis Amortized Cost, Noncurrent Loss Contingency, Damages Sought,Value Per Claim Damages sought per claim Loss Contingency, Damages Sought,Value Per Claim Flock Costs, Amortization Period Flock Costs, Amortization Period Flock costs, amortization period Checks Outstanding In Excess Of Book Cash Balances Checks outstanding in excess of related book cash balances. Checks outstanding in excess of related book cash balances Credit Agreement [Member] Immaterial Error Correction [Policy Text Block] Immaterial Error Correction. Immaterial Error Correction Stock Compensation Plan Transactions Stock Compensation Plan Transactions Stock compensation plan transactions Stock Compensation Plan Transactions Shares Stock Compensation Plan Transactions Shares Stock compensation plan transactions (in shares) Net income per common share attributable to Cal-Maine Foods, Inc. Earnings Per Share, Basic Diluted [Abstract] Net income per common share attributable to Cal-Maine Foods, Inc. Production and Processing Facilities, Capacity, Number of Layers Layer capacity at the time of acquisition Production and Processing Facilities, Capacity, Number of Layers Fassio Egg Farms, Inc. [Member] Business Combination, Contingent Consideration, Measurement Period Contingent consideration measurement period Contingent consideration [Member] Litigation Settlement, Treble Damages Treble damages Kraft Foods Global, Inc. et al. v. United Egg Producers, Inc. et al [Member] Gain on Involuntary Conversions [Policy Text Block] Gain on Involuntary Conversions Broiler Processing Plant,Hhatchery and Feed Mill [Member] Significant Accounting Policies [Line Items] Significant Accounting Policies [Table] Number Of Facilities, Tested Positive For HPAI Number Of Facilities, Tested Positive For HPAI Number of facilities, tested positive for HPAI Number Of Laying Hens, Affected By HPAI Positive Test Number Of Laying Hens, Affected By HPAI Positive Test Number of laying hens, affected by HPAI positive test Number Of Pullets, Tested Positive For HPAI Number Of Pullets, Tested Positive For HPAI Number of pullets, tested positive for HPAI Percent Of Total Flock Affected By HPAI Positive Test Percent Of Total Flock Affected By HPAI Positive Test Percent of total flock affected by HPAI positive test Number Of Pullets Acquired Number of pullets Number Of Cage Free Acquired Number of cage-free Cal-Maine Foods LLC [Member] Crepini LLC [Member] Crepini Foods LLC [Member] ISE America, Inc. [Member] ISE Inc [Member]