Consolidated Statements of Changes in Equity - USD ($)	Common stock	Additional paid-in capital	Retained earnings	Treasury stock	TSR, Inc. equity	Non- controlling interest	Total
Balance at May. 31, 2019	$ 31,142	$ 5,102,868	$ 15,268,224	$ (13,514,003)	$ 6,888,231	$ 28,792	$ 6,917,023
Balance (in Shares) at May. 31, 2019	3,114,163
Net income attributable to noncontrolling interest						28,379	28,379
Distribution to noncontrolling interest						(28,791)	(28,791)
Net loss attributable to TSR, Inc.			(1,126,428)		(1,126,428)		(1,126,428)
Balance at May. 31, 2020	$ 31,142	5,102,868	14,141,796	(13,514,003)	5,761,803	28,380	5,790,183
Balance (in Shares) at May. 31, 2020	3,114,163
Net income attributable to noncontrolling interest						23,889	23,889
Distribution to noncontrolling interest						(28,378)	(28,378)
Non-cash stock compensation		236,332			236,332		236,332
Net loss attributable to TSR, Inc.			(600,974)		(600,974)		(600,974)
Balance at May. 31, 2021	$ 31,142	$ 5,339,200	$ 13,540,822	$ (13,514,003)	$ 5,397,161	$ 23,891	$ 5,421,052
Balance (in Shares) at May. 31, 2021	3,114,163