Condensed Consolidated Statements of Operations (Unaudited) (USD $)	3 Months Ended
	Aug. 31, 2014	Aug. 31, 2013
Statements Of Operations [Abstract]
Revenue, net	$ 13,685,813	$ 12,086,697
Cost of sales	11,386,634	9,988,849
Selling, general and administrative expenses	2,226,412	2,039,429
Operating expenses	13,613,046	12,028,278
Income from operations	72,767	58,419
Other income (expense):
Interest and dividend income	1,654	1,704
Unrealized gain (loss) on marketable securities, net.	6,080	(1,840)
Income before income taxes	80,501	58,283
Provision for income taxes	34,000	20,000
Consolidated net income	46,501	38,283
Less: Net income attributable to noncontrolling interest	(21,909)	(27,365)
Net income attributable to TSR, Inc.	$ 24,592	$ 10,918
Net income per TSR, Inc. common share	$ 0.01	$ 0.01
Weighted average number of common shares outstanding	1,962,062	1,962,062