Commitments and Contingencies Disclosure [Text Block] Pension and Other Postretirement Benefits Disclosure [Text Block] Net Increase (Decrease) in Cash and Cash Equivalents Note Receivable Change Adjustments to Reconcile Net Income to Net Cash Provided By (Used In) Operating Activities: Accumulated Other Comprehensive Income Other Income (Expense), Net General & Administrative Expense Other Long-Term Liabilities Accrued Commissions & Sales Incentives Carrying value as of the balance sheet date of obligations incurred through that date and payable for sales commissions and incentives. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Note Receivable - Mestek Statement [Table] Entity Registrant Name Compensation Related Costs, Retirement Benefits Inventory Disclosure [Text Block] Capital Expenditures Stockholders' Equity, Period Increase (Decrease) Equity Component Interest Income (Expense), Net Cost of Goods Sold Other Liabilities Dividends Payable {1} Dividends Payable Accounts Receivable Document Period End Date Leases of Lessor Disclosure [Text Block] Income Tax Disclosure [Text Block] Organization, Consolidation and Presentation of Financial Statements Cash paid for Interest Translation effect on cash Cash Flows from Financing Activities: Common Stock, Par Value Accrued Compensation Amendment Flag Document and Entity Information Commitment and Contingencies Significant Accounting Policies [Text Block] Inventory Change Non-Cash Compensation Expense Cash Flows from Operating Activities: Additional Paid-in Capital Net Income attributable to Omega Flex, Inc. Net Income attributable to Omega Flex, Inc. Selling Expense Paid In Capital Total Liabilities Total Liabilities Current Liabilities: Deferred Taxes Current Assets: Current Fiscal Year End Date Supplemental Disclosure of Cash Flow Information Cumulative Translation Adjustment Diluted Weighted Average Shares Outstanding Income Statement Common Stock, Shares Authorized Accumulated Other Comprehensive Income (Loss) Omega Flex, Inc. Shareholders Equity: Entity Current Reporting Status Subsequent Events [Text Block] Income Taxes Accounting Policies Other Liabilities Change Provision for Losses on Accounts Receivable, net of write-offs and recoveries Shares, Outstanding Shares, Outstanding Shares, Outstanding Common Stock Cash and Cash Equivalents Entity Central Index Key Related Party Transactions Disclosure [Text Block] Treasury Stock Purchase Principal (Payments)/Borrowings on Line of Credit Net Cash Provided By (Used In) Investing Activities Net Cash Provided By (Used In) Investing Activities Property and Equipment - net Document Fiscal Year Focus Income Tax Expense Total Omega Flex, Inc. Shareholders Equity Total Omega Flex, Inc. Shareholders Equity Other Current Assets Debt Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Cash paid for Income Taxes Retained Earnings {1} Retained Earnings Operating Profit Operating Profit Gross Profit Gross Profit Treasury Stock Treasury Stock LIABILITIES AND SHAREHOLDERS' EQUITY Inventories - Net Entity Filer Category Proceeds from Issuance of Common Stock Non Controlling Interest Common Stock, Shares Issued Goodwill - net Statement of Financial Position Balance Sheets - Parenthetical Subsequent Events Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Leases Debt Disclosure [Text Block] Cash and Cash Equivalents - End of Period Cash and Cash Equivalents - End of Period Dividends Paid Accrued Compensation Change Other Assets Change Common Stock {1} Common Stock Diluted Earnings Basic Weighted Average Shares Outstanding Entity Common Stock, Shares Outstanding Stockholders' Equity Note Disclosure [Text Block] Cash Flows from Investing Activities: Treasury Stock {1} Treasury Stock Basic Earnings per Common Share: Less: Net (Income) Loss attributeable to Nonconrolling Interest, Net of Tax Net Income Net Income Other Long Term Assets ASSETS Document Fiscal Period Focus Compensation Related Costs, Share Based Payments Accounts Receivable Change Change in Assets and Liabilities: Depreciation and Amortization Basic Earnings Income Before Income Taxes Income Before Income Taxes Net Sales Entity Well-known Seasoned Issuer Property, Plant, and Equipment Dividends Common Stock, Shares Outstanding Deferred Taxes {1} Deferred Taxes Line of Credit Accounts Payable {1} Accounts Payable Total Assets Total Assets Entity Public Float Related Party Disclosures Property, Plant and Equipment Disclosure [Text Block] Net Cash Provided by (Used In) Financing Activities Net Cash Provided by (Used In) Financing Activities Accrued Commissions and Sales Incentives Change Increase / (decrease) in carrying value as of the balance sheet date of obligations incurred through that date and payable for sales commissions and incentives. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Statemet of Cash Flows Non-Controlling Interest Retained Earnings Long-Term Debt Document Type Cash and Cash Equivalents - Beginning of Period Cash and Cash Equivalents - Beginning of Period Net Cash Provided By (Used In) Operating Activities Net Cash Provided By (Used In) Operating Activities Statement of Stockholders' Equity Total Shareholders' Equity Total Shareholders' Equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Equity: Total Current Liabilities Total Current Liabilities Total Current Assets Total Current Assets Statement [Line Items] Inventory Accounts Payable Change Statement, Equity Components [Axis] Diluted Earnings per Common Share: Total Liabilities and Shareholders' Equity Total Liabilities and Shareholders' Equity Taxes Payable {1} Taxes Payable Entity Voluntary Filers