Marketable securities (Tables)

12 Months Ended

May 31, 2019

Marketable securities

Schedule of marketable securities

	S&P rating at	Interest		Maturity	May 31,		May 31,
	purchase	rate		date	2019		2018
Fixed Income:
Ford Motor Credit Co. LLC	BBB	3.700	%	8/02/18	$	—	$	1,015
Sobeys Inc.	BB+	3.520	%	8/08/18		—		3,040
Canadian Western Bank	A-	3.077	%	1/14/19		—		1,528
Sun Life Financial Inc.	A	2.770	%	5/13/19		—		3,018
Ford Motor Credit Co. LLC	BBB	3.140	%	6/14/19		5,074		5,101
Canadian Western Bank	A-	3.463	%	12/17/19		1,019		1,025
Laurentian Bank of Canada	BBB	2.500	%	1/23/20		—		3,003
Enercare Solutions Inc.	BBB	4.600	%	2/03/20		3,907		3,974
Enbridge Inc.	BBB+	4.530	%	3/09/20		5,137		5,203
Choice Properties REIT	BBB	3.600	%	4/20/20		5,062		5,091
Westcoast Energy Inc.	BBB+	4.570	%	7/02/20		—		5,293
Citigroup Inc. (USD)	BBB+	2.050	%	12/17/18		—		3,914
Royal Bank of Canada (USD)	AA-	1.625	%	4/15/19		—		3,857
					$	20,199	$	45,062