Note 1 - Significant Accounting Policies (Tables)

12 Months Ended

Apr. 30, 2022

Notes Tables

Financing Receivable, Allowance for Credit Loss [Table Text Block]

	(In thousands)
	Fiscal 2022			Fiscal 2021			Fiscal 2020
Balance at beginning of year	$	1,140		$	1,350		$	516
Net (credit) charge to expense		(581	)		(138	)		893
Net charge-off		-			(72	)		(59	)
Balance at end of year	$	559		$	1,140		$	1,350