Quarterly report [Sections 13 or 15(d)]

Note 9 - Long-term Debt (Details Textual)

v3.25.2
Note 9 - Long-term Debt (Details Textual)
3 Months Ended 6 Months Ended 12 Months Ended
Jan. 20, 2025
USD ($)
Dec. 17, 2024
USD ($)
T
May 19, 2022
USD ($)
Jun. 30, 2025
USD ($)
Mar. 31, 2025
USD ($)
Jun. 30, 2024
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2024
USD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2021
USD ($)
Jul. 11, 2023
USD ($)
Jun. 13, 2019
USD ($)
Gain (Loss) on Extinguishment of Debt       $ 0   $ 0 $ (156,000) $ 0        
Debt Modification Expense       $ (0)   (0) 176,000 (0)        
Repayments of Long-Term Debt             $ 149,563,000 (0)        
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration] Prime Rate [Member]                      
Interest Rate Swap Effective May 31, 2019 Through May 31, 2024 [Member]                        
Derivative Liability, Notional Amount                       $ 175,000,000
Derivative, Fixed Interest Rate       2.424%     2.424%          
Interest Rate Swap [Member]                        
Derivative Counter Party Risk Number of Financial Institutions             1          
Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), after Adjustments, Tax       $ (0)   (194,000) $ (0) (485,000)        
Interest Expense, Debt       0   $ 79,000 0 $ 198,000        
Derivative, Notional Amount     $ 125,000,000                  
Derivative, Nonmonetary Notional Amount, Flow Rate, Percentage     2.718%                  
Interest Rate Derivative Liabilities, at Fair Value                 $ 2,340,000      
Steel Hedging Instrument [Member]                        
Derivative, Nonmonetary Notional Amount, Mass (US Ton) | T   3,000                    
Derivative, Fixed Payments   $ 819,000                    
Derivative Liability       76,000     76,000   54,000      
Secured Debt [Member]                        
Debt Instrument, Unamortized Discount       400,000     400,000   162,000      
Long-Term Debt       147,725,000     147,725,000   147,526,000      
Prepaid Expenses and Other Current Assets [Member] | Interest Rate Swap [Member]                        
Interest Rate Derivative Liabilities, at Fair Value       1,337,000     1,337,000   1,712,000      
Other Noncurrent Assets [Member] | Interest Rate Swap [Member]                        
Interest Rate Derivative Liabilities, at Fair Value                 628,000      
Revolving Credit Facility [Member]                        
Line of Credit Facility, Maximum Borrowing Capacity       125,000     125,000          
Long-Term Debt       42,000,000     42,000,000   0      
Line of Credit Facility, Remaining Borrowing Capacity       82,450,000     $ 82,450,000   149,450,000      
Revolving Credit Facility [Member] | New York Federal Reserve Bank NYFRB [Member]                        
Debt Instrument, Basis Spread on Variable Rate             0.50%          
Revolving Credit Facility [Member] | One Month Adjusted Term SOFR Rate [Member]                        
Debt Instrument, Basis Spread on Variable Rate             1.00%          
Revolving Credit Facility [Member] | Maximum [Member]                        
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage             0.30%          
Revolving Credit Facility [Member] | Maximum [Member] | Leverage Ratio Two [Member] | Secured Overnight Financing Rate (SOFR) [Member]                        
Debt Instrument, Basis Spread on Variable Rate             1.00%          
Revolving Credit Facility [Member] | Minimum [Member]                        
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage             0.15%          
Revolving Credit Facility [Member] | Minimum [Member] | Leverage Ratio Two [Member] | Secured Overnight Financing Rate (SOFR) [Member]                        
Debt Instrument, Basis Spread on Variable Rate             0.375%          
Letter of Credit [Member]                        
Line of Credit Facility, Maximum Borrowing Capacity       10,000     $ 10,000          
Swingline Loan [Member]                        
Line of Credit Facility, Maximum Borrowing Capacity       15,000     15,000          
Floor Plan Line of Credit [Member]                        
Line of Credit Facility, Maximum Borrowing Capacity $ 20,000,000                      
Debt Instrument, Basis Spread on Variable Rate 0.50%                      
Senior Secured Term Loan Facility [Member]                        
Line of Credit Facility, Maximum Borrowing Capacity       150,000     $ 150,000          
Senior Secured Term Loan Facility [Member] | Maximum [Member] | Leverage Ratio One [Member] | Secured Overnight Financing Rate (SOFR) [Member]                        
Debt Instrument, Basis Spread on Variable Rate             2.00%          
Senior Secured Term Loan Facility [Member] | Minimum [Member] | Leverage Ratio One [Member] | Secured Overnight Financing Rate (SOFR) [Member]                        
Debt Instrument, Basis Spread on Variable Rate             1.375%          
Credit Agreement [Member]                        
Debt Instrument, Unamortized Discount                   $ 312,000    
Debt Issuance Costs, Net                   863,000    
Debt Instrument, Upfront Fee                   260,000    
Deferred Debt Issuance Cost, Writeoff                   131,000    
Write off of Unamortized Debt Discount                   $ 25,000    
Gain (Loss) on Extinguishment of Debt             $ 156,000          
Debt Modification Expense             176,000          
Repayments of Long-Term Debt                 42,000,000      
Debt Instrument Covenant Leverage Ratio         3.50%              
Credit Agreement [Member] | Asset Pledged as Collateral [Member] | Cash Surrender Value of Corporate Owned Life Insurance Policies [Member]                        
Line of Credit Facility, Maximum Borrowing Capacity                     $ 1,000  
Credit Agreement [Member] | Asset Pledged as Collateral [Member] | Cash Surrender Value of Corporate Owned Life Insurance Policies [Member] | Other Noncurrent Liabilities [Member]                        
Secured Debt         $ 427,000       $ 546,000      
Credit Agreement [Member] | Maximum [Member]                        
Line of Credit Facility Increase in Maximum Borrowing Capacity       $ 175,000     $ 175,000