Concentration Risk Benchmark [Axis] Accounts Receivable [Member] Sales Revenue, Net [Member] Customer [Axis] Wal-Mart [Member] Dollar General [Member] Segments [Axis] Frozen Food Products [Member] Snack Food Products [Member] Other [Member] Product and Service [Axis] Retail [Member] Foodservice [Member] Type of Arrangement and Non-arrangement Transactions [Axis] Third Master Collateral Loan and Security Agreement [Member] Debt Instrument [Axis] 3.70% Fixed Rate Chicago Processing Facility [Member] Equity Components [Axis] Common Stock [Member] Capital in Excess of Par Value [Member] Retained Earnings [Member] Accumulated Other Comprehensive Loss [Member] Master Collateral Loan and Security Agreement [Member] Range [Axis] Maximum [Member] 4.13% Fixed Rate Chicago Processing Facility [Member] 3.98% Fixed Rate Chicago Processing Facility [Member] Variable Rate [Axis] LIBOR [Member] Prime Rate [Member] Credit Facility [Axis] Line of Credit One [Member] Line of Credit Two [Member] Income Tax Authority [Axis] Except California [Member] Subsequent Event Type [Axis] Subsequent Event [Member] Wells Fargo Bank N.A [Member] Award Type [Axis] Fifth Borrowing [Member] Legal Entity [Axis] CRG Acquisition, LLC [Member] Purchase and Sale Agreement [Member] CARES Act [Member] Fourth Master Collateral Loan and Security Agreement [Member] 3.29% Fixed Rate Chicago Processing Facility [Member] Fifth Master Collateral Loan and Security Agreement [Member] 3.68% Fixed Rate Chicago Processing Facility [Member] Antidilutive Securities [Axis] Stock Option [Member] Warrant [Member] Convertible Securities [Member] Deferred Tax [Member] Entity Registrant Name Entity Central Index Key Document Type Document Period End Date Amendment Flag Current Fiscal Year End Date Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Small Business Flag Entity Emerging Growth Company Entity Shell Company Entity Common Stock, Shares Outstanding Document Fiscal Period Focus Document Fiscal Year Focus Statement of Financial Position [Abstract] ASSETS Current assets: Cash and cash equivalents Accounts receivable, less allowance for doubtful accounts of $152 and $31, respectively, and promotional allowances of $2,803 and $2,974, respectively Inventories, net Prepaid expenses and other current assets Total current assets Property, plant and equipment, net of accumulated depreciation and amortization of $55,628 and $54,015, respectively Other non-current assets Deferred income taxes (Note 5) Total assets LIABILITIES AND SHAREHOLDERS' EQUITY Current liabilities: Accounts payable Accrued payroll, advertising and other expenses Income taxes payable Current lease payable Current notes payable - equipment Line of credit Current portion of non-current liabilities Total current liabilities Long-term notes payable - equipment Long-term lease payable Non-current liabilities Total liabilities Contingencies and commitments (Note 3) Shareholders' equity: Preferred stock, without par value; authorized - 1,000,000 shares; issued and outstanding - none Common stock, $1.00 par value; authorized - 20,000,000 shares; issued and outstanding - 9,076,832 and 9,076,832 shares, respectively Capital in excess of par value Retained earnings Accumulated other comprehensive loss Total shareholders' equity Total liabilities and shareholders' equity Accounts receivable, allowance for doubtful accounts Accounts receivable, allowance for promotional allowances Property, plant and equipment, accumulated depreciation Preferred stock, par value Preferred stock, shares authorized Preferred stock, shares issued Preferred stock, shares outstanding Common stock, par value Common stock, shares authorized Common stock, shares issued Common stock, shares outstanding Income Statement [Abstract] Net sales Cost of products sold Gross margin Selling, general and administrative expenses Gain on sale of property, plant and equipment (Loss) Income before taxes (Benefit from) provision for income taxes Net income Basic earnings per share Shares used to compute basic earnings per share Statement [Table] Statement [Line Items] Balance Balance, shares Net income Balance Balance, shares Statement of Cash Flows [Abstract] Cash flows from operating activities: Adjustments to reconcile net income to net cash used in operating activities: Depreciation Provision for losses on accounts receivable Increase (reduction) in promotional allowances Changes in operating assets and liabilities: Accounts receivable Inventories Prepaid expenses and other current assets Other non-current assets Accounts payable Accrued payroll, advertising and other expenses Income taxes payable Non-current liabilities Net cash used in operating activities Cash used in investing activities: Proceeds from sale of property, plant and equipment Additions to property, plant and equipment Net cash used in investing activities Cash provided by (used in) financing activities: Payment of lease obligations Proceeds from bank borrowings Repayments of bank borrowings Net cash provided by financing activities Net increase (decrease) in cash and cash equivalents Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Supplemental disclosure of cash flow information: Cash paid for income taxes Cash paid for interest Accounting Policies [Abstract] Summary of Significant Accounting Policies Inventory Disclosure [Abstract] Inventories Commitments and Contingencies Disclosure [Abstract] Contingencies and Commitments Segment Reporting [Abstract] Segment Information Income Tax Disclosure [Abstract] Income Taxes Debt Disclosure [Abstract] Equipment Notes Payable and Financial Arrangements Revenue Recognition Leases Subsequent Events Basic Earnings Per Share Schedule of Customer Concentration Schedule of Inventories Schedule of Future Minimum Lease Payments Schedule of Segment Reporting Information, by Segment Schedule of Disaggregates Our Sales to Customers Schedule of Long Term Notes Payable Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Concentration risk, percentage Lease term Proceeds from line of credit Area of land Purchase price Weighted average number of shares outstanding Meat, ingredients and supplies Work in progress Finished goods Inventories, net Lease term, description Amortization of equipment 2021 2022 2023 2024 2025 Later Years Total Minimum Lease Payments Less: Amount representing executory costs Less: Amount representing interest Present value of future minimum lease payments Capital lease obligation, current Capital lease obligations, noncurrent Number of reportable operating segments Sales Gross margin SG&A (Loss) Income before taxes Total assets Additions to PP&E Direct store delivery Direct customer warehouse Total Snack Food Products Distributors Total Frozen Food Products Totals Income tax rate reconciliation description Operating loss carry forwards Federal income tax rate Income tax benefit Effective tax rate percentage Statistical Measurement [Axis] Equipment financing amount Loan borrowed amount Facility fixed rate percentage Debt term Debt monthly principal and interest payments Debt monthly term Line of credit, expired date Line of credit, description Line of credit, maximum borrowing amount Variable rate Line of credit Secured equipment notes payable to Wells Fargo Bank, N.A. collateralized by equipment for the new Chicago processing facility. Less current portion of notes payable Total long-term notes payable - equipment A provision (charged as a reduction of revenue) to relate the costs of certain customer discounts and rewards for the associated revenue. Accruals for trade and sales promotions are recorded primarily at the time a product is sold to the customer based on expected levels of performance. Settlement of these liabilitites typically occur in subsequent periods. Capital in Excess of Par Value [Member] Direct customer warehouse. Direct store delivery. Distributors. Dollar General [Member] Amount representing executory costs,inance lease. First Receipts [Member] Foodservice [Member] 4.13% Fixed Rate Chicago Processing Facility [Member] Frozen Food Products [Member] Line of Credit One [Member] Line of Credit Two [Member] Loan Agreement [Member] Master Collateral Loan and Security Agreement [Member] Except California [Member] Reduction in promotional allowances. Lease term or rental agreement term. Second Quarter of Fiscal 2020 [Member] Second Receipts [Member] Security Agreement [Member] Snack Food Products [Member] Third Master Collateral Loan and Security Agreement [Member] 3.98% Fixed Rate Chicago Processing Facility [Member] 3.70% Fixed Rate Chicago Processing Facility [Member] Total Frozen Food Products. Total Snack Food Products. Wal-Mart [Member] Wells Fargo Bank N.A [Member] Fifth Borrowing [Member] CRG Acquisition, LLC [Member] Purchase and Sale Agreement [Member] CARES Act [Member] Fourth Master Collateral Loan and Security Agreement [Member] 3.29% Fixed Rate Chicago Processing Facility [Member] Fifth Master Collateral Loan and Security Agreement [Member] 3.68% Fixed Rate Chicago Processing Facility [Member] Assets, Current Liabilities, Current Liabilities Stockholders' Equity Attributable to Parent Liabilities and Equity Shares, Outstanding Increase (Decrease) in Accounts Receivable Increase (Decrease) in Inventories Increase (Decrease) in Prepaid Expense and Other Assets Increase (Decrease) in Other Noncurrent Assets Increase (Decrease) in Accounts Payable Increase (Decrease) in Accrued Liabilities Increase (Decrease) in Income Taxes Payable Increase (Decrease) in Other Noncurrent Liabilities Net Cash Provided by (Used in) Operating Activities Payments to Acquire Property, Plant, and Equipment Net Cash Provided by (Used in) Investing Activities Repayments of Debt and Lease Obligation Repayments of Bank Debt Net Cash Provided by (Used in) Financing Activities Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations Finance Lease, Liability, Payment, Due Finance Lease, Liability, Undiscounted Excess Amount Long-term Line of Credit