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Represents the Unvested units outstanding (number of shares), as of the indicated date.

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Aggregate carrying value as of the balance sheet date of the liabilities for stock option plans and other equity-based compensation arrangements payable within one year (or the operating cycle, if longer).

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Aggregate carrying value as of the balance sheet date of the liabilities for stock option plans and other equity-based compensation arrangements payable after one year (or the operating cycle, if longer).

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Aggregate carrying value as of the balance sheet date of the liabilities for stock option plans and other equity-based compensation arrangements.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Description of service or performance condition required to be met for earning right to award under share-based payment arrangement. Includes, but is not limited to, combination of market, performance or service condition.

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Description of terms of share-based payment arrangement. Includes, but is not limited to, type of award or grantee and reason for issuance.

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Amount of cash paid to settle liability for award under share-based payment arrangement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Net number of share options (or share units) granted during the period.

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Number of options vested.

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STOCK BASED PLANS (Details Narrative) - USD ($)		1 Months Ended	3 Months Ended
STOCK BASED PLANS (Details Narrative) - USD ($)	Feb. 18, 2021	Feb. 28, 2021	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation, description			through February of 2024.
Unvested units outstanding			9,872		13,252
Share based compensation weighted average grant date fair value			$ 146.06
Share based compensation paid in period		$ 1,214,000
Share based compensation vested shares		7,750
Forfeiture rate			0.00%
Share based compensation liability			$ 2,557,000		$ 3,331,000
Share based compensation liability, current			1,264,000		1,378,000
Share based compensation liability, non-current			1,293,000		$ 1,953,000
Unrecognized compensation costs			$ 1,354,000
Compensation expense, weighted average recognize period			1 year 7 months 6 days
Phantom Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation, description			On April 1, 2006, the Company adopted the Omega Flex, Inc. 2006 Phantom Stock Plan (the “Plan”). The Plan authorizes the grant of up to one million units of phantom stock to employees, officers or directors of the Company. The phantom stock units (“Units”) each represent a contractual right to payment of compensation in the future based on the market value of the Company’s common stock.
Share based compensation vesting rights			The Units are granted to participants upon the recommendation of the Company’s CEO, and the approval of the Compensation Committee. Each of the Units that are granted to a participant will be initially valued by the Compensation Committee, at an amount equal to the closing price of the Company’s common stock on the grant date, but are recorded at fair value using the Black-Sholes method as described below. The Units follow a vesting schedule, with a maximum vesting of three years after the grant date. Upon vesting, the Units represent a contractual right of payment for the value of the Unit and therefore are stated as liabilities in accordance with Topic 718.
Compensation expense			$ 441,000	$ 467,000
Full Value Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation grants in period	2,412
Share based compensation weighted average grant date fair value	$ 146.06