Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Dec. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 7,168	$ 5,236	$ 5,579
Restricted cash	7,251	7,020	6,937
Accounts receivable, net of allowance for credit losses of $51, $77 and $34, respectively	89,928	97,101	94,947
Inventories	968,889	670,898	774,121
Refundable income taxes	1,153	6,976	0
Other current assets	3,906	6,808	5,898
Total current assets	1,078,295	794,039	887,482
Property, plant and equipment, net	307,714	301,212	297,676
Right-of-use assets operating, net	20,538	23,235	26,012
Right-of-use assets financing, net	23,146	33,571	33,882
Pension assets	59,003	59,304	51,786
Other assets	841	1,360	1,670
Total assets	1,489,537	1,212,721	1,298,508
Current liabilities:
Accounts payable	125,182	69,232	156,065
Deferred revenue	8,708	9,956	14,412
Accrued vacation	10,997	11,143	11,682
Accrued payroll	13,083	16,772	12,469
Other accrued expenses	29,530	23,293	26,921
Income taxes payable	5,967	0	2,427
Current portion of long-term debt and lease obligations	30,582	25,792	21,344
Total current liabilities	224,049	156,188	245,320
Long-term debt, less current portion	611,349	432,695	399,948
Operating lease obligations, less current portion	13,617	16,675	17,219
Financing lease obligations, less current portion	13,102	17,293	17,382
Deferred income tax liability, net	30,820	31,481	34,434
Other liabilities	3,162	3,639	3,933
Total liabilities	896,099	657,971	718,236
Commitments and contingencies
Stockholders' equity:
Preferred stock	351	351	607
Common stock, $0.25 par value per share	3,050	3,049	3,043
Additional paid-in capital	99,430	99,152	98,862
Treasury stock, at cost	(195,706)	(168,573)	(170,088)
Accumulated other comprehensive loss	(20,488)	(20,488)	(26,468)
Retained earnings	706,801	641,259	674,316
Total stockholders' equity	593,438	554,750	580,272
Total liabilities and stockholders’ equity	$ 1,489,537	$ 1,212,721	$ 1,298,508