Leases (Components Of Lease Expense) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Oct. 31, 2022	Oct. 31, 2021	Oct. 31, 2022	Oct. 31, 2021
Leases [Abstract]
Operating lease cost	$ 629,094	$ 589,654	$ 1,252,905	$ 1,181,058
Variable lease cost	54,816	97,354	109,631	194,708
Short term lease cost	2,250	1,800	4,500	3,600
Amortization of right-of-use assets	658,149	540,118	1,229,252	1,134,221
Interest expense	122,219	71,578	185,833	137,982
Total	$ 1,466,528	$ 1,300,504	$ 2,782,121	$ 2,651,569