Condensed Consolidated Statements of Equity (Unaudited) - USD ($)	Total	Common stock	Additional paid-in capital	Retained earnings	Treasury stock	TSR, Inc. equity	Non-controlling interest
Balance at May. 31, 2019	$ 6,917,023	$ 31,142	$ 5,102,868	$ 15,268,224	$ (13,514,003)	$ 6,888,231	$ 28,792
Balance (in Shares) at May. 31, 2019		3,114,163
Net income (loss) attributable to noncontrolling interest	3,672						3,672
Net income (loss) attributable to TSR, Inc.	(663,014)			(663,014)		(663,014)
Balance at Aug. 31, 2019	6,257,681	$ 31,142	5,102,868	14,605,210	(13,514,003)	6,225,217	32,464
Balance (in Shares) at Aug. 31, 2019		3,114,163
Net income (loss) attributable to noncontrolling interest	6,246						6,246
Distribution to noncontrolling interest	(11,000)						(11,000)
Net income (loss) attributable to TSR, Inc.	61,512			61,512		61,512
Balance at Nov. 30, 2019	6,314,439	$ 31,142	5,102,868	14,666,722	(13,514,003)	6,286,729	27,710
Balance (in Shares) at Nov. 30, 2019		3,114,163
Net income (loss) attributable to noncontrolling interest	3,109						3,109
Distribution to noncontrolling interest	(17,791)						(17,791)
Net income (loss) attributable to TSR, Inc.	(945,102)			(945,102)		(945,102)
Balance at Feb. 29, 2020	5,354,655	$ 31,142	5,102,868	13,721,620	(13,514,003)	5,341,627	13,028
Balance (in Shares) at Feb. 29, 2020		3,114,163
Balance at May. 31, 2020	5,790,183	$ 31,142	5,102,868	14,141,796	(13,514,003)	5,761,803	28,380
Balance (in Shares) at May. 31, 2020		3,114,163
Net income (loss) attributable to noncontrolling interest	5,923						5,923
Net income (loss) attributable to TSR, Inc.	(3,000)			(3,000)		(3,000)
Balance at Aug. 31, 2020	5,793,106	$ 31,142	5,102,868	14,138,796	(13,514,003)	5,758,803	34,303
Balance (in Shares) at Aug. 31, 2020		3,114,163
Net income (loss) attributable to noncontrolling interest	(552)						(552)
Net income (loss) attributable to TSR, Inc.	(246,758)			(246,758)		(246,758)
Balance at Nov. 30, 2020	5,545,796	$ 31,142	5,102,868	13,892,038	(13,514,003)	5,512,045	33,751
Balance (in Shares) at Nov. 30, 2020		3,114,163
Net income (loss) attributable to noncontrolling interest	3,964						3,964
Non-cash stock compensation	59,083		59,083			59,083
Net income (loss) attributable to TSR, Inc.	(304,929)			(304,929)		(304,929)
Balance at Feb. 28, 2021	$ 5,303,914	$ 31,142	$ 5,161,951	$ 13,587,109	$ (13,514,003)	$ 5,266,199	$ 37,715
Balance (in Shares) at Feb. 28, 2021		3,114,163