DESCRIPTION OF BUSINESS (Details)	Jun. 30, 2026	Mar. 31, 2026	Dec. 31, 2025
ACM Research (Shanghai), Inc. ("ACM Shanghai")
Description of Business [Abstract]
Effective interest held as at	73.20%	73.60%	74.60%
ACM Research (Wuxi), Inc. ("ACM Wuxi")
Description of Business [Abstract]
Effective interest held as at	73.20%		74.60%
CleanChip Technologies Limited ("CleanChip")
Description of Business [Abstract]
Effective interest held as at	73.20%		74.60%
ACM Research Korea CO., LTD. ("ACM Korea")
Description of Business [Abstract]
Effective interest held as at	73.20%		74.60%
ACM Research ( Lingang), Inc. ("ACM Lingang")
Description of Business [Abstract]
Effective interest held as at	73.20%		74.60%
ACM Research (CA), Inc. ("ACM California")
Description of Business [Abstract]
Effective interest held as at	73.20%		74.60%
ACM Research (Cayman), Inc.
Description of Business [Abstract]
Effective interest held as at	100.00%		100.00%
ACM Research (Singapore) PTE. Ltd. ("ACM Singapore")
Description of Business [Abstract]
Effective interest held as at	100.00%		100.00%
ACM Research (Beijing), Inc. ("ACM Beijing")
Description of Business [Abstract]
Effective interest held as at	73.20%		74.60%
Hanguk ACM CO., LTD
Description of Business [Abstract]
Effective interest held as at	100.00%		100.00%
Yusheng Micro Semiconductor (Shanghai) Co., Ltd.
Description of Business [Abstract]
Effective interest held as at	73.20%		74.60%
ACM-Wooil Microelectronics (Shanghai) Co., Ltd.
Description of Business [Abstract]
Effective interest held as at	53.60%		54.50%
ACM Research (Chengdu), Inc. ("ACM Chengdu")
Description of Business [Abstract]
Effective interest held as at	73.20%		74.60%
Shengyi Micro Semiconductor (Shanghai) Co., Ltd.
Description of Business [Abstract]
Effective interest held as at	62.20%		63.40%