Condensed Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Nov. 30, 2021	Nov. 30, 2020	Nov. 30, 2021	Nov. 30, 2020
Income Statement [Abstract]
Revenue, net	$ 23,863,550	$ 16,068,577	$ 46,729,567	$ 30,582,583
Cost of sales	19,815,539	13,233,492	38,871,168	25,416,414
Selling, general and administrative expenses	3,633,160	3,058,618	7,798,465	5,329,919
Cost and expenses, total	23,448,699	16,292,110	46,669,633	30,746,333
Income (loss) from operations	414,851	(223,533)	59,934	(163,750)
Other income (expense):
Interest expense, net	(28,138)	(51,697)	(61,984)	(103,973)
Gain on PPP Loan and interest forgiveness			6,735,246
Unrealized loss on marketable securities, net	(3,888)	(2,080)	(6,336)	(11,664)
Income (loss) before income taxes	382,825	(277,310)	6,726,860	(279,387)
Provision (benefit) from income taxes	128,000	(30,000)	13,000	(35,000)
Consolidated net income (loss)	254,825	(247,310)	6,713,860	(244,387)
Less: Net income (loss) attributable to noncontrolling interest	11,789	(552)	69,281	5,371
Net income (loss) attributable to TSR, Inc.	$ 243,036	$ (246,758)	$ 6,644,579	$ (249,758)
Basic net income (loss) per TSR, Inc. common share (in Dollars per share)	$ 0.12	$ (0.13)	$ 3.39	$ (0.13)
Diluted net income (loss) per TSR, Inc. common share (in Dollars per share)	$ 0.12	$ (0.13)	$ 3.27	$ (0.13)
Basic weighted average number of common shares outstanding (in Shares)	1,962,062	1,962,062	1,962,062	1,962,062
Diluted weighted average number of common shares outstanding (in Shares)	2,032,878	1,962,062	2,031,690	1,962,062