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Share-Based Compensation - Narrative (Details)			3 Months Ended		6 Months Ended
Share-Based Compensation - Narrative (Details)	Apr. 05, 2022	Apr. 28, 2021 SFr / shares shares	Jun. 30, 2024 USD ($) plan co-founder shares	Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($) plan co-founder shares	Jun. 30, 2023 USD ($)	Dec. 31, 2023 shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of share-based compensation plans \| plan			2		2
Share-based compensation expense \| $			$ 1,828,245	$ 1,497,661	$ 3,505,453	$ 4,074,848
Number of co-founders \| co-founder			3		3
Equity Incentive Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-based compensation expense \| $			$ 1,095,147	191,072	$ 2,055,051	312,984
Common shares issuable (in shares)			959,023		959,023
Weighted average period of recognition					2 years 14 days
Expiration period	10 years
Unrecognized compensation expense \| $			$ 10,500,000		$ 10,500,000
Employee Stock Option Plan (ESOP)
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Common shares issuable (in shares)			98,393		98,393
MoonLake AG Restricted Founder Shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-based compensation expense \| $			$ 0	364,218	$ 0	1,574,300
ESPP
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-based compensation expense \| $			733,098	771,313	1,450,402	1,828,267
Unrecognized share-based compensation expense, non-option awards \| $			4,600,000		$ 4,600,000
Weighted average period of recognition					1 year 6 months 18 days
ESPP \| Share-Based Payment Arrangement, Tranche One
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting percentage					25.00%
ESPP \| Share-Based Payment Arrangement, Tranche Two
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting percentage					25.00%
ESPP \| Share-Based Payment Arrangement, Tranche Three
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting percentage					25.00%
ESPP \| Share-Based Payment Arrangement, Tranche Four
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting percentage					25.00%
ESOP
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-based compensation expense \| $			$ 0	$ 171,058	$ 0	$ 359,297
ESOP \| Employee Stock Option Plan (ESOP) \| Share-Based Payment Arrangement, Tranche One
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting percentage					25.00%
ESOP \| Employee Stock Option Plan (ESOP) \| Share-Based Payment Arrangement, Tranche Two
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting percentage					25.00%
ESOP \| Employee Stock Option Plan (ESOP) \| Share-Based Payment Arrangement, Tranche Three
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting percentage					25.00%
ESOP \| Employee Stock Option Plan (ESOP) \| Share-Based Payment Arrangement, Tranche Four
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting percentage					25.00%
Common Class C
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Common shares, shares outstanding (in shares)			995,267		995,267		2,505,476
Common Class A
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, number of shares authorized (in shares)			4,353,948		4,353,948
Common shares issuable (in shares)			3,296,532		3,296,532
Common shares, shares outstanding (in shares)			62,874,637		62,874,637		60,466,453
MoonLake AG
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Reverse vesting percentage		90.00%
Common shares, shares outstanding (in shares)		110,000
MoonLake AG \| MoonLake AG Restricted Founder Shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Common shares, shares outstanding (in shares)		99,000
Vesting percentage		4.166%
Vesting period		2 years
Nominal value (CHF per share) \| SFr / shares		SFr 0.10
MoonLake AG \| Common Class C
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Common shares, shares outstanding (in shares)		3,700,257
MoonLake AG \| Common Class C \| MoonLake AG Restricted Founder Shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Common shares, shares outstanding (in shares)		3,330,231