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Operating leases Finance Lease, Right-of-Use Asset, Amortization Fair Value, Inputs, Level 2 [Member] Fair Value, Inputs, Level 2 [Member] Debt Debt Disclosure [Text Block] Fair Value Hierarchy [Domain] Fair Value Hierarchy and NAV [Domain] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Disaggregation of Revenue [Table Text Block] Disaggregation of Revenue [Table Text Block] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Principles of Consolidation Consolidation, Policy [Policy Text Block] 401(k) matching contributions Defined Contribution Plan, Employer Matching Contribution Amount Defined Contribution Plan, Employer Matching Contribution Amount Restatement Determination Date: Restatement Determination Date [Axis] Title of 12(b) Security Title of 12(b) Security Concentration Risk Type [Axis] Concentration Risk Type [Axis] Common shares; authorized: 60,000,000 shares of $0.01 par value; 20,790,261 and 20,850,454 shares issued and outstanding for 2024 and 2023, respectively Common Stock, Value, Issued Fiscal Year Fiscal Period, Policy [Policy Text Block] Document Financial Statement Error Correction [Flag] Document Financial Statement Error Correction [Flag] Identifiable assets* Segment, Assets, Identifiable assets Segment, Assets, Identifiable assets Other Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Other ESOP Employee Stock Ownership Plan (ESOP), Compensation Expense Land Land Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Share-Based Payment Arrangement [Abstract] Industrial Research Corporation Industrial Research Corporation [Member] Industrial Research Corporation Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value State income taxes, net of federal deduction (percent) Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Auditor Name Auditor Name Unrealized gain on interest rate swap Deferred Tax Liabilities, Unrealized Gains on Trading Securities Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] CASH FLOWS FROM FINANCING ACTIVITIES: Net Cash Provided by (Used in) Financing Activities [Abstract] Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Inventory (FIFO basis) Inventory, Finished Goods, Gross Property, plant and equipment, estimated useful lives Property, Plant and Equipment, Useful Life Total deferred tax liabilities Deferred Tax Liabilities, Gross Basic earnings per share Earnings Per Share, Basic Accounts payable Increase (Decrease) in Accounts Payable New shares issued Proceeds from Issuance 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Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Machinery and equipment Machinery and Equipment, Gross Total assets Assets Assets Fiscal 2025 Finite-Lived Intangible Asset, Expected Amortization, Year One Cost of sales Cost of Goods and Services Sold Granted, Shares Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Summary of intangible assets Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block] Additions to property, plant, and equipment Capital expenditures Payments to Acquire Property, Plant, and Equipment OTHER LONG-TERM LIABILITIES Other Liabilities, Noncurrent Range of restricted stock to be issued minimum Range of Restricted Stock to be Issued Minimum Range of restricted stock to be issued minimum. Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Fair Value, Measurement Inputs, Disclosure [Text Block] Fair Value Measurement and Measurement Inputs, Recurring and Nonrecurring [Text Block] Commitments and Contingencies Commitments and Contingencies Business Combinations Policy Business Combinations Policy [Policy Text Block] Schedule of effective income tax rate reconciliation Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Termination Date Trading Arrangement Termination Date Shares surrendered for payroll taxes Shares Surrendered During Period, For Payroll Taxes, Value Shares Surrendered During Period, For Payroll Taxes, Value Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Sales Revenues Revenues Fiscal 2026 Lessee, Operating Lease, Liability, to be Paid, Year Two Share-Based Compensation Share-Based Payment Arrangement [Text Block] Lease liability Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Deferred Rent Total contribution expense Profit Sharing, Employee Stock Ownership Plan, Employee Stock Purchase Plan and Defined Contribution Pension Plan Contribution Expense Profit Sharing, Employee Stock Ownership Plan, Employee Stock Purchase Plan and Defined Contribution Pension Plan Contribution Expense Entity Address, City or Town Entity Address, City or Town Deferred tax assets: Deferred Tax Assets, Gross [Abstract] Compensation expense Share-Based Payment Arrangement, Expense Net income Net income Net Income (Loss) Net Income (Loss) Trading Arrangement: Trading Arrangement [Axis] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Profit sharing Defined Contribution Plan, Employer Discretionary Contribution Amount Business Acquisition [Axis] Business Acquisition [Axis] Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Entity File Number Entity File Number ROU asset Deferred Tax Liabilities, Leasing Arrangements Revenue from Contract with Customer Revenue from Contract with Customer [Text Block] Document Fiscal Year Focus Document Fiscal Year Focus Income Statement [Abstract] Income Statement [Abstract] Entity Address, Address Line One Entity Address, Address Line One Multi Employer Pension Plan Withdrawal Liability Payment Over Period of Years Multi Employer Pension Plan Withdrawal Liability Payment Over Period of Years Multi employer pension plan withdrawal liability payment over period of years. 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