Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Apr. 30, 2024	Apr. 30, 2023	Apr. 30, 2022
OPERATING ACTIVITIES
Net income (loss)	$ 116,216,000	$ 93,723,000	$ (29,722,000)
Adjustments to reconcile net income to net cash and cash equivalents provided by operating activities:
Depreciation and amortization	78,781,000	93,744,000	96,606,000
Net loss on disposal of property, plant and equipment	1,742,000	1,050,000	697,000
Reduction in carrying amount of operating lease right-of-use assets	31,365,000	26,592,000	27,610,000
Amortization of debt issuance costs	842,000	861,000	867,000
Unrealized loss on foreign exchange forward contracts	1,544,000	0	0
Net gain on debt forgiveness and modification	0	2,089,000	0
Stock-based compensation expense	10,682,000	7,396,000	4,708,000
Deferred income taxes	(9,565,000)	(24,152,000)	(25,717,000)
Pension contributions in excess of expense	0	0	710,000
Pension settlement, net	0	7,000	(68,473,000)
Contributions of employer stock to employee benefit plan	3,676,000	838,000	2,938,000
Other non-cash items	1,881,000	7,522,000	489,000
Changes in operating assets and liabilities (net of acquired assets and liabilities):
Customer receivables	1,783,000	35,011,000	(11,366,000)
Inventories	28,459,000	30,937,000	(70,386,000)
Income taxes receivable/payable	(16,815,000)	3,055,000	(6,206,000)
Prepaid expenses and other assets	(5,515,000)	(5,309,000)	(3,542,000)
Accounts payable	227,000	(50,191,000)	16,386,000
Accrued compensation and related expenses	11,246,000	5,060,000	(15,518,000)
Operating lease liabilities	(30,388,000)	(26,906,000)	(25,100,000)
Marketing and other accrued expenses	4,589,000	1,702,000	(7,482,000)
Net Cash Provided by Operating Activities	230,750,000	198,837,000	24,445,000
INVESTING ACTIVITIES
Payments to acquire property, plant and equipment	(91,048,000)	(42,600,000)	(44,122,000)
Proceeds from sales of property, plant and equipment	50,000	43,000	10,000
Investment in promotional displays	(1,193,000)	(2,780,000)	(7,460,000)
Net Cash Used by Investing Activities	(92,191,000)	(45,337,000)	(51,572,000)
FINANCING ACTIVITIES
Payments of long-term debt	(2,749,000)	(132,894,000)	(50,891,000)
Proceeds from long-term debt	0	0	35,430,000
Repurchase of common stock	(87,652,000)	0	(25,000,000)
Withholding of employee taxes related to stock-based compensation	(2,492,000)	(1,199,000)	(1,116,000)
Debt issuance cost	0	0	(42,000)
Net Cash Used by Financing Activities	(92,893,000)	(134,093,000)	(41,619,000)
Net Increase (Decrease) in Cash and Cash Equivalents	45,666,000	19,407,000	(68,746,000)
Cash and Cash Equivalents, Beginning of Year	41,732,000	22,325,000	91,071,000
Cash and Cash Equivalents, End of Year	87,398,000	41,732,000	22,325,000
Non-cash investing and financing activities:
Property, plant and equipment	327	2,684	1,050
Cash paid during the period for:
Interest	14,873	17,347	9,904
Income taxes	$ 62,949	$ 49,593	$ 18,761