CLS Holdings USA, Inc. General form of registration statement for all companies including face-amount certificate companies

GAIN ON SETTLEMENT OF LIABILITIES	6 Months Ended	12 Months Ended
GAIN ON SETTLEMENT OF LIABILITIES	Nov. 30, 2020	May 31, 2020
Other Liabilities and Financial Instruments Subject to Mandatory Redemption [Abstract]
Other Liabilities Disclosure [Text Block]	Note 18 – Gain on Settlement of Liabilities On August 14, 2019, the Company made a payment to 4Front Advisors to settle its dispute with Alternative Solutions and its former owners and the Oasis Note was reduced in accordance with its terms. In addition, the amount of $275,000, which the Company had accrued with respect to this dispute, was extinguished resulting in a gain of $275,000.	NOTE 19 – GAIN ON SETTLEMENT OF LIABILITIES On August 14, 2019, the Company made a payment to 4Front Advisors to settle its dispute with Alternative Solutions and its former owners and the Oasis Note was reduced in accordance with its terms. In addition, the amount of $275,000, which the Company had accrued with respect to this dispute, was extinguished resulting in a gain of $275,000.