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Note 6 - Debt (Details Textual) - USD ($) $ in Thousands |  |  | 1 Months Ended | 6 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
May 23, 2023 | Jan. 20, 2023 | Sep. 28, 2024 | Sep. 27, 2025 | Sep. 28, 2024 | Mar. 31, 2024 | Mar. 31, 2025 | Dec. 23, 2024
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration] |  |  |  |  |  | Secured Overnight Financing Rate (SOFR) [Member] |  |
Payments to Acquire Property, Plant, and Equipment |  |  |  | $ 18,836 | $ 17,657 |  |  |
Long-Term Debt |  |  | $ 504,612 | 280,198 | 504,612 |  | $ 369,878 |
Long-Term Line of Credit |  |  | 146,421 | 1,000 | 146,421 |  | 1,000 |
Term Loan A-1 [Member] |  |  |  |  |  |  |  |
Debt Instrument, Periodic Payment, Principal |  | $ 1,000 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 3.3012% |  |  |  |  |  |
Long-Term Debt, Gross |  |  | 83,000 | 0 | 83,000 |  | 81,000 |
Debt Instrument, Face Amount |  | $ 100,000 |  |  |  |  |  |
Debt Instrument, Maturity Date |  | Jun. 01, 2025 |  |  |  |  |  |
Long-Term Debt |  |  | 82,979 | 0 | 82,979 |  | 80,995 |
Term Loan A-2 [Member] |  |  |  |  |  |  |  |
Debt Instrument, Periodic Payment, Principal |  | $ 1,500 |  |  |  |  |  |
Long-Term Debt, Gross |  |  | 276,000 | 261,000 | 276,000 |  | 268,500 |
Debt Instrument, Maturity Date |  | Jan. 20, 2028 |  |  |  |  |  |
Long-Term Debt | $ 173,500 | $ 175,000 | 275,212 | $ 260,441 | 275,212 |  | 267,827 |
Second Amended and Restated Loan and Guaranty Agreement Amendment One with Farm Credit East, ACA [Member] |  |  |  |  |  |  |  |
Debt Instrument, Face Amount | 125,000 |  |  |  |  |  |  |
Amended Term Loan A-2 [Member] |  |  |  |  |  |  |  |
Debt Instrument, Periodic Payment, Principal | 3,750 |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 5.91% |  |  |  |
Long-Term Debt | $ 298,500 |  |  |  |  |  |  |
Debt Instrument, Unamortized Discount |  |  |  | $ 1,100 |  |  |  |
Revolving Credit Facility [Member] |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  |  |  | $ 450,000
Line of Credit Facility, Maximum Borrowing Capacity During Nonproduction Period |  |  |  |  |  |  |  | 400,000
Debt Issuance Costs, Line of Credit Arrangements, Net |  |  |  |  |  |  |  | $ 1,600
Line of Credit Facility, Remaining Borrowing Capacity |  |  |  | 448,400 |  |  |  |
Debt Instrument, Covenant, Maximum Percentage of Commitments for Available Line of Credit that Requires Minimum Fixed Charge Coverage Ratio |  |  |  |  |  |  |  | 10.00%
Debt Instrument, Covenant, Maximum Amount for Available Line of Credit that Requires Minimum Fixed Charge Coverage Ratio |  |  |  |  |  |  |  | $ 30,000
Long-Term Line of Credit |  |  | 146,421 | 1,000 | $ 146,421 |  | $ 1,000 |
Standby Letters of Credit [Member] |  |  |  |  |  |  |  |
Long-Term Line of Credit |  |  |  | 600 |  |  |  |
Unsecured Note Payable [Member] |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  |  |  | 1.80% |  |
Can Manufacturing Finance Obligation [Member] |  |  |  |  |  |  |  |
Payments to Acquire Property, Plant, and Equipment |  |  | $ 21,300 |  |  |  |  |
Debt Instrument, Periodic Payment, Principal |  |  |  | $ 300 |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 5.56% |  |  |  |
Long-Term Debt, Gross |  |  |  | $ 18,700 |  |  |  |
Can Manufacturing Finance Obligation [Member] | Current Portion of Long-term Debt and Lease Obligations [Member] |  |  |  |  |  |  |  |
Long-Term Debt, Gross |  |  |  | $ 2,700 |  |  |  |

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