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Share-Based Payments: (Details Narrative) - USD ($) $ in Thousands	1 Months Ended		3 Months Ended		9 Months Ended
	Jun. 30, 2025	Mar. 31, 2022	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Mar. 31, 2025	Dec. 31, 2024
Subsidiary or Equity Method Investee [Line Items]
Share-based payment expense			$ 370	$ 600	$ 1,313	$ 1,768
Share-based payment arrangement, expense			260	$ 400	$ 870	$ 1,170
Weighted average remaining contractual life of options outstanding (in years)					2 years 9 months 18 days
Weighted average remaining contractual life of options exercisable (in years)					1 year
Aggregate intrinsic value of options outstanding and options outstanding			2,100		$ 2,100
Aggregate intrinsic value of options outstanding and options exercisable			2,100		2,100
Unrecognized compensation cost			2,700		$ 2,700
Options granted					0	0
Equity option
Subsidiary or Equity Method Investee [Line Items]
Share-based compensation arrangement by share-based payment award, award expiration period					6 years
Fair value of shares vested					$ 20	$ 40
Interparfums SA [Member]
Subsidiary or Equity Method Investee [Line Items]
Ownership percentage		72.00%					72.00%	72.00%
Aggregate cost			$ 4,200		$ 4,200
Employees [Member] | Interparfums SA [Member]
Subsidiary or Equity Method Investee [Line Items]
Share-based payment arrangement, nonvested award, cost not yet recognized, period for recognition					3 years 3 months 18 days
Aggregate cost of shares acquired for issuance of award					$ 4,500
Shares adjusted for stock splits distributed	106,046
Interparfums SA Subsidiary [Member] | Employees [Member]
Subsidiary or Equity Method Investee [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized		88,400
Shares acquired for issuance of award					106,046
Maximum [Member] | Equity option
Subsidiary or Equity Method Investee [Line Items]
Options vesting period					5 years
Maximum [Member] | Employees [Member] | Interparfums SA [Member]
Subsidiary or Equity Method Investee [Line Items]
Share-based compensation arrangement by share-based payment award, award requisite service period		6 months
Minimum [Member] | Equity option
Subsidiary or Equity Method Investee [Line Items]
Options vesting period					4 years

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

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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