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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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Recent Agreements: (Details Narrative)	9 Months Ended
Recent Agreements: (Details Narrative)	Sep. 30, 2023 USD ($)	Sep. 30, 2023 EUR (€)	Dec. 31, 2022	Apr. 30, 2021
Business Acquisition [Line Items]
Purchase price, period cost	$ 148,100,000
Acquisition costs, period cost	3,000,000
Cash held in escrow is included in other assets	$ 1,200,000
Long-term debt, term	10 years	10 years	4 years	10 years
Long-term line of credit	$ 127,100,000	€ 120,000,000
Description of debt instrument interest rate terms	one-month Euribor plus 0.75%
Debt instrument, face amount \| €		€ 80,000,000
Variable interest rate	2.00%	2.00%
Fixed interest rate	1.10%	1.10%
Minimum [Member]
Business Acquisition [Line Items]
Depreciated over a range	7 years	7 years
Maximum [Member]
Business Acquisition [Line Items]
Depreciated over a range	50 years	50 years
Land [Member]
Business Acquisition [Line Items]
Purchase price, period cost	$ 60,700,000
Building [Member]
Business Acquisition [Line Items]
Purchase price, period cost	$ 87,400,000
Interparfums SA [Member]
Business Acquisition [Line Items]
Ownership percentage				72.00%
Roberto Cavalli [Member]
Business Acquisition [Line Items]
Description of recent agreement	The license became effective in July 2023 and will last for 6.5 years.
Lacoste [Member]
Business Acquisition [Line Items]
Description of recent agreement	The license becomes effective in January 2024 and will last for 15 years.
Donna Karan and DKNY [Member]
Business Acquisition [Line Items]
Description of recent agreement	In connection with the grant of license, we issued 65,342 shares of Inter Parfums, Inc. common stock to the licensor valued at $5.0 million. The exclusive license became effective July 1, 2022, and we are planning to launch new fragrances under these brands in 2024.
Rochas Fashion [Member]
Business Acquisition [Line Items]
Description of recent agreement	we entered into a new license agreement modifying our Rochas fashion business model. The new agreement calls for a reduction in royalties to be received. As a result, in the first quarter of 2021, we took a $2.4 million impairment charge on our Rochas fashion trademark. In the fourth quarter of 2022, we again took a $6.8 million impairment charge on the Rochas fashion trademark after an independent expert concluded that the valuation of the trademark was $11.3 million. The new license also contains an option for the licensee to buy-out the Rochas fashion trademarks in June 2025 at its then fair market value.