Retirement Benefit Plan (Details Narrative) - USD ($)		12 Months Ended
	Jan. 01, 1998	Apr. 30, 2022	Apr. 30, 2021
Retirement Benefits [Abstract]
Description of employees eligibility		Employees are eligible to participate in the Plan when they have attained the age of 21 and completed one thousand hours of service in any plan year with the Company
Employees vesting percentage	100.00%
Employer matching contribution vesting period	P6Y
Employees matching contributions		$ 63,000	$ 61,000