Reconciliation of Cash, Cash Equivalents, and Restricted Cash and Cash - USD ($)	Feb. 28, 2019	May 31, 2018	Feb. 28, 2018	May 31, 2017
Reconciliation of cash, cash equivalents and restricted cash
Cash and Cash Equivalents	$ 1,766,161	$ 2,297,890	$ 1,807,277
Restricted Cash	198,887	21,559	21,524	$ 21,443
Total cash, cash equivalents and restricted cash	$ 1,965,048	$ 2,319,449	$ 1,828,801	$ 1,001,084