iAnthus Capital Holdings, Inc. Quarterly report [Sections 13 or 15(d)]

Quarterly report [Sections 13 or 15(d)]

Cover
- Cover Page
Financial Statements
Notes to Financial Statements
Accounting Policies
- Organization and Description of Business (Policies)
Notes Tables
Notes Details

Share Capital - Additional Information (Detail)

v3.25.1

Share Capital - Additional Information (Detail) - USD ($) $ in Thousands								3 Months Ended		12 Months Ended
	Jan. 14, 2025	Jan. 09, 2025	Nov. 26, 2024	Feb. 27, 2024	Feb. 02, 2024	Jan. 05, 2024	Jan. 02, 2024	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024	Jun. 23, 2022	Dec. 31, 2021
Share settlement for taxes paid related to restricted stock units								$ 5	$ 46
Equity Incentive Plan
Maximum authorized issue of shares, percentage								20.00%
Cheetah Enterprises, Inc. [Member]
Stock issued during period, shares, new issues		41,667
Restricted Stock Units (RSUs) [Member]
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount								$ 2,200
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition								1 year 2 months 12 days
Stock issued during period, shares, new issues	26,661				2,000	23,461
Share settlement for taxes paid related to restricted stock units, shares	1,029					2,300
Share settlement for taxes paid related to restricted stock units	$ 100					$ 100
Share based payment arrangement plan modification fair value of award								$ 0
Share-based compensation arrangement by share-based payment award, number of shares authorized											26,881	363,921
Share-based compensation arrangement by share-based payment award, shares issued in period			144,500					0
Share-based compensation arrangement by share-based payment award, equity instruments other than options, vested in period								212		126,957
Common Stock [Member]
Share settlement for taxes paid related to restricted stock units, shares								(1,029,000)	(2,300,000)
Hi-Med Settlement Agreement
Stock issued during period, shares, new issues							20,000
New Jersey Senior Secured Bridge Notes [Member]
Stock issued during period, shares, new issues				61,314
Selling, general and administrative expenses
Share-based payment arrangement expense								$ 0	$ 0
Selling, general and administrative expenses \| Restricted Stock Units (RSUs) [Member]
Share-based payment arrangement expense								$ 500	$ 400

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