Federal Income Taxes - Summary of Net Operating Loss for Federal Income Tax (Details)	12 Months Ended
	May 31, 2019 USD ($)
Year Ended May 31, 2002 [Member]
NOL Carryforward	$ 1,950,345
Year Expiring	2022
Year Ended May 31, 2003 [Member]
NOL Carryforward	$ 4,154,960
Year Expiring	2023
Year Ended May 31, 2004 [Member]
NOL Carryforward	$ 1,632,774
Year Expiring	2024
Year Ended May 31, 2005 [Member]
NOL Carryforward	$ 5,620,289
Year Expiring	2025
Year Ended May 31, 2006 [Member]
NOL Carryforward	$ 2,622,921
Year Expiring	2026
Year Ended May 31, 2007 [Member]
NOL Carryforward	$ 2,151,837
Year Expiring	2027
Year Ended May 31, 2011 [Member]
NOL Carryforward	$ 746,484
Year Expiring	2031
Year Ended May 31, 2015 [Member]
NOL Carryforward	$ 321,625
Year Expiring	2035
Year Ended May 31, 2016 [Member]
NOL Carryforward	$ 1,060,747
Year Expiring	2036