Discontinued Operations (Tables)

3 Months Ended

Aug. 31, 2020

Discontinued Operations and Disposal Groups [Abstract]

Discontinued operations

	Three Months Ended,
	August 31, 2020		August 31, 2019
Net revenue	$	—	$	2,247,107
Cost of revenue		—		1,164,125
Gross profit		—		1,082,982
Operating expenses:
General, administration and sales		—		586,857
Research and development		—		9,081
Total operating expenses		—		595,938
Operating income		—		487,044
Other income (expense), net		—		(75,731	)
Income before taxes		—		411,313
Provision for income taxes		—		35,351
Net income from discontinued operations	$	—	$	375,962