Stockholders' Equity (Details Narrative) - USD ($)	3 Months Ended	6 Months Ended		12 Months Ended
	Apr. 30, 2019	Apr. 30, 2019	Apr. 30, 2018	Oct. 31, 2018	Sep. 10, 2017
Number of treasury stock shares				236,586
Number of treasury stock shares, value				$ 1,129,050
Share-based compensation, options, number of shares authorized	1,000,000	1,000,000
Stock options granted		689,000
Stock options purchase price per share		$ 5.43
Stock-based compensation	$ 25,000	$ 25,000
Outstanding stock compensation expense	$ 1,732,650	$ 1,732,650
Five Board Members [Member]
Stock options granted	59,000
Stock options purchase price per share	$ 5.43
Stock options expected term	P6Y
Stock options vesting period	12 months
Stock options aggregate grant date fair value	$ 233,320
Certain Officers [Member]
Stock options granted	630,000
Stock options purchase price per share	$ 5.43
Stock options expected term	P6Y
Stock options vesting period	3 years
Stock options aggregate grant date fair value	$ 1,524,600
2013 Equity Compensation Plan [Member]
Share-based compensation, remaining shares available for grant	311,000	311,000
2017 Share Repurchase Program [Member]
Number of treasury stock shares				236,586
Number of treasury stock shares, value				$ 1,129,050
Number of common stock repurchase					2,000,000