Federal Income Taxes - Summary of Deferred Taxes (Details) - USD ($)	May 31, 2019	May 31, 2018
Income Tax Disclosure [Abstract]
Net operating loss carryforward	$ 4,807,616	$ 2,015,616
Accrued expenses	88,298	101,320
Other	33,528	27,432
Total deferred tax asset	4,929,442	2,144,368
Depreciation and amortization, tax reporting in excess of financial	(2,877,573)	(2,635,333)
Valuation allowance	(2,978,511)
Net deferred tax liability	$ (926,642)	$ (490,965)