3. Critical Accounting Policies and Estimates (Details - Fair Value) - USD ($)	Feb. 28, 2019	May 31, 2018
Assets
Cash and cash equivalent	$ 2,287,965	$ 1,390,258
Marketable equity securities	927,443	1,230,754
Cryptocurrency	47,027	31,479
Liability -
Short-term notes	3,944,563	1,058,084
Level 1
Assets
Cash and cash equivalent	2,287,965	1,390,258
Marketable equity securities	927,443	1,230,754
Cryptocurrency	47,027	31,479
Liability -
Short-term notes	0	0
Level 2
Assets
Cash and cash equivalent	0	0
Marketable equity securities	0	0
Cryptocurrency	0	0
Liability -
Short-term notes	4,311,114	998,192
Level 3
Assets
Cash and cash equivalent	0	0
Marketable equity securities	0	0
Cryptocurrency	0	0
Liability -
Short-term notes	$ 0	$ 0