Shareholders' Equity (Details) - USD ($)		1 Months Ended							3 Months Ended
	Nov. 30, 2015	Mar. 31, 2022	May 31, 2021	Apr. 30, 2021	Apr. 30, 2020	May 31, 2019	May 31, 2016	Nov. 30, 2000	Feb. 28, 2022	Nov. 30, 2021	Oct. 31, 2016	Aug. 31, 2010	Feb. 29, 1996
Shareholders' Equity (Details) [Line Items]
Preferred stock, shares authorized									5,000,000	5,000,000
Issued compensation shares				26,786
Cost issuance shares amount (in Dollars)				$ 75,000
Stock option, description					the Company granted stock options to (a) four non-employee directors to each purchase 15,000 shares of common stock, (b) one non-employee-director to purchase 25,000 shares of common stock, and (c) two Company officers to each purchase 50,000 shares of common stock at an exercise price of $1.41 per share, the market price of the common stock on the date of the grant. These options vest immediately and expire five years from the grant date. The Company recorded a cost of $154,534 related to the granting of these options.
Intrinsic value of exercisable options (in Dollars)									$ 423,300
Weighted average remaining life									3 years 1 month 24 days
Subsequent Event [Member]
Shareholders' Equity (Details) [Line Items]
Issued compensation shares		26,000
Incentive Stock 2015 Plan [Member]
Shareholders' Equity (Details) [Line Items]
Issued compensation shares						47,207
Incentive Stock 2015 Plan [Member] | Share-based Payment Arrangement, Option [Member]
Shareholders' Equity (Details) [Line Items]
Issued compensation shares	1,500,000
Officer [Member] | Incentive Stock 2015 Plan [Member]
Shareholders' Equity (Details) [Line Items]
Issuance of shares as compensation, shares							99,151
Non Employee Director [Member]
Shareholders' Equity (Details) [Line Items]
Compensation (in Dollars)									$ 2,500
Non Employee Director [Member] | Share-based Payment Arrangement, Option [Member]
Shareholders' Equity (Details) [Line Items]
Compensation (in Dollars)			$ 3,000						$ 3,500
Non Employee Director [Member] | Incentive Stock 2015 Plan [Member]
Shareholders' Equity (Details) [Line Items]
Issued compensation shares					15,000
Cost issuance shares amount (in Dollars)					$ 21,150
Share-based Payment Arrangement, Option [Member] | Incentive Stock 2015 Plan [Member]
Shareholders' Equity (Details) [Line Items]
Issued compensation shares					27,500
Cost issuance shares amount (in Dollars)					$ 41,250
Non-Employee Director One [Member] | Share-based Payment Arrangement, Option [Member]
Shareholders' Equity (Details) [Line Items]
Compensation (in Dollars)			$ 4,000
Preferred Stock [Member]
Shareholders' Equity (Details) [Line Items]
Preferred stock, shares authorized												5,000,000	1,000,000
Series C Preferred Stock [Member]
Shareholders' Equity (Details) [Line Items]
Preferred stock, shares authorized								100,000	100,000	100,000
Number of shares converted into common stock upon conversion								10
Cumulative dividend per share per annum (in Dollars per share)								$ 0.50
Preferred stock issued in payment of financial consulting services								70,000
Converted into common stock, description									Dividends aggregating $159,069 have not been paid for the semi-annual periods ended December 31, 2001 through the semi-annual payment due December 31, 2021. The Company has accrued these dividends. At February 28, 2022, there are 10,000 shares of Series C Preferred issued and outstanding.
Series D Preferred Stock [Member]
Shareholders' Equity (Details) [Line Items]
Preferred stock, shares authorized									75,000	75,000	75,000