Condensed Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Feb. 29, 2016	Feb. 28, 2015	Feb. 29, 2016	Feb. 28, 2015
Statements Of Operations [Abstract]
Revenue, net	$ 15,074,832	$ 14,213,207	$ 45,494,626	$ 42,432,821
Cost of sales	12,770,009	12,081,771	38,164,592	35,547,861
Selling, general and administrative expenses	2,318,607	2,229,241	6,791,922	6,635,330
Operating expenses	15,088,616	14,311,012	44,956,514	42,183,191
Income (loss) from operations	(13,784)	(97,805)	538,112	249,630
Other income (expense):
Interest and dividend income	2,250	1,515	5,999	4,406
Unrealized gain (loss) on marketable securities, net	(4,144)	(3,200)	(3,896)	4,744
Income (loss) before income taxes	(15,678)	(99,490)	540,215	258,780
Provision (benefit) for income taxes	(7,000)	(39,000)	270,000	105,000
Consolidated net income (loss)	(8,678)	(60,490)	270,215	153,780
Less: net income attributable to noncontrolling interest	(14,969)	(24,324)	(40,049)	(73,019)
Net income (loss) attributable to TSR, Inc.	$ (23,647)	$ (84,814)	$ 230,166	$ 80,761
Net income (loss) per TSR, Inc. common share	$ (0.01)	$ (0.04)	$ 0.12	$ 0.04
Weighted average number of common shares outstanding	1,962,062	1,962,062	1,962,062	1,962,062