Leases (Details Narrative) - USD ($)	3 Months Ended		9 Months Ended
	Jan. 31, 2023	Jan. 31, 2022	Jan. 31, 2023	Jan. 31, 2022
Finance lease costs	$ 348,000	$ 221,000	$ 1,145,000	$ 620,000
Operating Lease, Payments			3,000,000	1,600,000
Finance lease liabilities	0		0
Finance Lease [Member]
Finance lease costs	0	$ 0	0	$ 0
Finance lease liabilities	$ 2,222,000		$ 2,222,000