Condensed Consolidated Statement of Operations and Comprehensive Income (Loss) (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Feb. 28, 2019	Feb. 28, 2018	Feb. 28, 2019	Feb. 28, 2018
Operating revenues
Total revenues	$ 1,444,822	$ 796,304	$ 2,817,756	$ 1,679,256
Cost of revenue
Total cost of revenues	1,012,504	446,393	2,064,282	1,116,981
Gross profit (loss)	432,318	349,911	753,474	562,275
Operating expenses
General and administrative expenses	3,273,479	1,844,826	7,850,987	4,962,210
Advertising expenses	298,297	301,073	977,431	830,292
Total operating expenses	3,571,776	2,145,899	8,828,418	5,792,502
Net loss from operations	(3,139,458)	(1,795,988)	(8,074,944)	(8,230,277)
Other income/ (expense)
Other income	(209)	1,279	5,693	10,153
Interest income (expense)	(146,283)	(17,186)	(195,194)	(31,719)
Net realized (loss) gain on investments	1,881,159	0	1,612,559	0
Unrealized (loss) gain on equity securities	(1,957,422)	0	18,814	0
Unrealized (loss) gain on cryptocurrencies	1,610	0	(36,724)	0
Total other income (expense)	(221,145)	(15,907)	(1,405,148)	(21,566)
Loss before income taxes	(3,360,603)	(1,811,895)	(6,669,796)	(5,251,793)
Income tax expenses	0	0	0	0
Net loss	(3,360,603)	(1,811,895)	(6,669,796)	(5,251,793)
Deemed dividend for beneficial conversion of convertible preferred stock	(25,600)	(2,120,523)	(992,700)	(5,168,865)
Preferred stock dividends	(98,420)	(89,047)	(312,454)	(244,586)
Net loss attributable to common shareholders	(3,484,623)	(4,021,465)	(7,974,950)	10,665,244
Other comprehensive income (loss)
Unrealized investment (loss)	0	(144,399)	0	(236,666)
Foreign currency translation loss	(6,211)	0	(665)	0
Comprehensive loss attributable to common shareholders	$ (3,490,834)	$ (4,165,864)	$ (7,975,615)	$ 10,901,910
Loss per share - basic and diluted	$ (0.08)	$ (0.15)	$ (0.22)	$ (0.52)
Weighted average number of shares outstanding - basic and diluted	43,332,692	26,100,627	35,623,585	20,387,616
Investor Relations Services [Member]
Operating revenues
Total revenues	$ 147,664	$ 196,627	$ 546,251	$ 701,660
Cost of revenue
Total cost of revenues	253,135	367,301	1,106,084	1,025,519
Subscriptions [Member]
Operating revenues
Total revenues	229,220	214,506	680,119	530,102
Products [Member]
Operating revenues
Total revenues	1,061,318	183,185	1,493,939	240,753
Cost of revenue
Total cost of revenues	759,369	79,092	958,198	91,462
Other Revenues [Member]
Operating revenues
Total revenues	$ 6,620	$ 201,986	$ 97,447	$ 206,741