v3.25.1
Note 6 - Debt (Details Textual) - USD ($)
1 Months Ended 12 Months Ended
Dec. 23, 2024
May 23, 2023
Jan. 20, 2023
Sep. 28, 2024
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2023
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]           Secured Overnight Financing Rate (SOFR) [Member]  
Payments to Acquire Property, Plant, and Equipment         $ 37,225,000 $ 36,637,000 $ 70,628,000
Total finance obligation         369,878,000 604,786,000  
Statutory Accounting Practices, Statutory Amount Available for Dividend Payments without Regulatory Approval         50,000    
Dividends, Preferred Stock, Cash         23,181 23,000 23,000
Pledged Assets Not Separately Reported, Fixed Assets         804,000,000    
Long-Term Line of Credit         1,000,000 237,225,000  
Term Loan A-1 [Member]              
Debt Instrument, Periodic Payment, Principal     $ 1,000,000        
Debt Instrument, Interest Rate, Stated Percentage     3.3012%        
Debt Instrument, Face Amount     $ 100,000,000        
Debt Instrument, Maturity Date     Jun. 01, 2025        
Total finance obligation         80,995,000 84,963,000  
Term Loan A-2 [Member]              
Debt Instrument, Periodic Payment, Principal     $ 1,500,000        
Debt Instrument, Maturity Date     Jan. 20, 2028        
Total finance obligation   $ 173,500,000 $ 175,000,000   $ 267,827,000 282,598,000  
Second Amended and Restated Loan and Guaranty Agreement Amendment One with Farm Credit East, ACA [Member]              
Debt Instrument, Face Amount   125,000,000          
Amended Term Loan A-2 [Member]              
Debt Instrument, Periodic Payment, Principal   3,750,000          
Debt Instrument, Interest Rate, Stated Percentage         6.57%    
Total finance obligation   $ 298,500,000          
Debt Instrument, Unamortized Discount         $ 1,100,000    
Term Loan [Member]              
Proceeds from Patronage Distributions         4,200,000 3,700,000 $ 900,000
Revolving Credit Facility [Member]              
Line of Credit Facility, Maximum Borrowing Capacity         450,000,000    
Line of Credit Facility, Maximum Borrowing Capacity During Nonproduction Period         400,000,000    
Line of Credit Facility, Remaining Borrowing Capacity         $ 442,000,000    
Debt Issuance Costs, Line of Credit Arrangements, Net $ 1,600,000            
Repayments of Lines of Credit $ 70,000,000            
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         $ 30,000,000    
Debt Agreements, Financial Covenants, Minimum EBITDA         75,000,000    
Long-Term Line of Credit         1,000,000 $ 237,225,000  
Standby Letters of Credit [Member]              
Long-Term Line of Credit         7,000,000    
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       $ 21,300,000      
Debt Instrument, Periodic Payment, Principal         $ 300,000    
Debt Instrument, Interest Rate, Stated Percentage         5.56%