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Debt - Additional Information (Detail)
 1 Months Ended 3 Months Ended 9 Months Ended
Oct. 01, 2025
USD ($)
Sep. 29, 2022
USD ($)
Oct. 31, 2025
USD ($)
Jun. 30, 2023
USD ($)
Aug. 31, 2022
USD ($)
Sep. 30, 2025
USD ($)
Sep. 30, 2024
Sep. 30, 2025
USD ($)
Bond
Sep. 30, 2024
Oct. 10, 2025
USD ($)
Oct. 09, 2025
USD ($)
Jun. 25, 2025
USD ($)
Dec. 31, 2024
USD ($)
Oct. 14, 2022
Line Of Credit Facility [Line Items]                            
Swing loans           $ 2,030,000   $ 2,030,000         $ 0  
Life of underlying asset               15 years            
Revolving Credit Facility [Member]                            
Line Of Credit Facility [Line Items]                            
Agreement borrowing capacity                       $ 125,000,000    
Maturity date               Jun. 25, 2030            
Credit agreement modification               As modified, the Trigger Period will commence on any day in which the Undrawn Availability is less than the greater of 12.50% (previously 15%) of the Maximum Revolving Advance Amount or $12,500 (previously $15,000) and will terminate on any day in which the Undrawn Availability is more than the greater of 12.50% (previously 15%) of the Maximum Revolving Advance Amount or $12,500 (previously $15,000) for 30 consecutive days (collectively, the “Trigger Period Modification Consent”). Immediately upon expiration of the 45 consecutive day period, the definition of the Trigger Period will revert to the definition in effect immediately prior to the Trigger Period Modification Consent.            
Long term debt           50,530,000   $ 50,530,000         56,000,000  
Line of credit, remaining borrowing capacity           28,189,000   28,189,000            
Debt issuance costs           $ 891,000   $ 891,000            
Effective interest rate during period           7.38% 8.26% 7.22% 8.24%          
Revolving Credit Facility [Member] | Subsequent Event [Member]                            
Line Of Credit Facility [Line Items]                            
Maximum revolving advance amount percentage of undrawn availability of credit agreement                   12.50% 15.00%      
Line of credit, remaining borrowing capacity                   $ 12,500,000 $ 15,000,000      
Trigger period for structured insolvency                   45 days        
Trigger period under the credit agreement for structured insolvency                   45 days        
Revolving Credit Facility [Member] | Minimum [Member]                            
Line Of Credit Facility [Line Items]                            
Fixed charge coverage ratio           1.05   1.05            
Revolving Credit Facility [Member] | SOFR [Member]                            
Line Of Credit Facility [Line Items]                            
Debt instrument description of interest rate               Secured Overnight Financing Rate (“SOFR”) plus an applicable margin ranging between 2.00% and 2.50%.            
Revolving Credit Facility [Member] | SOFR [Member] | Minimum [Member]                            
Line Of Credit Facility [Line Items]                            
Debt instrument basis spread               2.00%            
Revolving Credit Facility [Member] | SOFR [Member] | Maximum [Member]                            
Line Of Credit Facility [Line Items]                            
Debt instrument basis spread               2.50%            
Revolving Credit Facility [Member] | Senior Secured Asset-Based Revolving Credit Facility [Member]                            
Line Of Credit Facility [Line Items]                            
Agreement borrowing capacity                       100,000,000    
Revolving Credit Facility [Member] | Letter of Credit [Member]                            
Line Of Credit Facility [Line Items]                            
Agreement borrowing capacity                       40,000,000    
Revolving Credit Facility [Member] | European Credit Facility [Member]                            
Line Of Credit Facility [Line Items]                            
Agreement borrowing capacity                       30,000,000    
Sale and Leaseback Financing Obligations [Member]                            
Line Of Credit Facility [Line Items]                            
Long term debt           $ 46,115,000   $ 46,115,000         45,451,000  
Lessee lease term                           20 years
Lessee, operating lease, option to extend               however, UES may extend the lease for the Properties for four successive periods of five years each. If fully extended, the Restated Lease would expire in August 2062            
Lessee, operating term period                           5 years
Extended lease expiration date                           2062-08
Lease repurchase percentage on lessor investment for properties                           115.00%
Effective interest rate during period           8.29% 8.25% 8.28% 8.24%          
Rental properties           $ 3,719,000   $ 3,719,000            
Sale and Leaseback Financing Obligations [Member] | Subsequent Event [Member]                            
Line Of Credit Facility [Line Items]                            
Incremental percentage on annual lease payment 2.04%                          
Rental properties $ 3,795,000                          
Sale and Leaseback Financing Obligations [Member] | Capital Additions [Member]                            
Line Of Credit Facility [Line Items]                            
Estimated cost on upgrading existing equipment         $ 2,500,000                  
Proceeds from disbursement agreement       $ 2,500,000                    
Annual rent adjustment to repay restated lease         $ 2,500,000                  
Sale and Leaseback Financing Obligations [Member] | Maximum [Member]                            
Line Of Credit Facility [Line Items]                            
Incremental percentage on annual lease payment               2.04%            
Change in consumer price index ratio               1.25            
Equipment Financing Facility [Member]                            
Line Of Credit Facility [Line Items]                            
Agreement borrowing capacity   $ 20,000,000                        
Long term debt           $ 15,187,000   $ 15,187,000         16,782,000  
Payments of principal and interest               $ 293,000            
Debt instrument, maturity date, description               2031            
Debt Instrument, Term   84 months                        
Equipment Financing Facility [Member] | Term Notes [Member]                            
Line Of Credit Facility [Line Items]                            
Effective interest rate during period           8.66% 8.69% 8.66% 8.60%          
Equipment Financing Facility [Member] | Term Notes [Member] | Minimum [Member]                            
Line Of Credit Facility [Line Items]                            
Percentage of converted fixed interest rate               8.40%            
Equipment Financing Facility [Member] | Term Notes [Member] | Maximum [Member]                            
Line Of Credit Facility [Line Items]                            
Percentage of converted fixed interest rate               9.22%            
Equipment Term Notes [Member]                            
Line Of Credit Facility [Line Items]                            
Agreement borrowing capacity           $ 13,500,000   $ 13,500,000       13,500,000    
Frequency of payment and payment terms, description               On June 25, 2025, the Corporation borrowed $13,500 with such proceeds used to paydown borrowings under the Revolving Credit Facility. The Equipment Term Notes are payable in equal monthly installments of principal of $161 commencing August 1, 2025, and continuing on the first day of each month through June 2030, followed by the sixtieth payment of all unpaid principal, accrued and unpaid interest and all unpaid fees, unless otherwise refinanced.            
Borrowed amount                       $ 13,500,000    
Monthly installment               $ 161,000            
Principal payments term,Description               principal payments due under the Equipment Term Notes during the next 12 months            
Long term debt           $ 13,179,000   $ 13,179,000            
Effective interest rate during period           7.94%                
Equipment Term Notes [Member] | Subsequent Event [Member]                            
Line Of Credit Facility [Line Items]                            
Repayment of borrowings     $ 2,798,000                      
Equipment Term Notes [Member] | SOFR [Member]                            
Line Of Credit Facility [Line Items]                            
Debt instrument description of interest rate               Borrowings under the Equipment Term Notes will bear interest at SOFR plus an applicable margin ranging between 3.00% and 3.50%.            
Equipment Term Notes [Member] | SOFR [Member] | Minimum [Member]                            
Line Of Credit Facility [Line Items]                            
Debt instrument basis spread               3.00%            
Equipment Term Notes [Member] | SOFR [Member] | Maximum [Member]                            
Line Of Credit Facility [Line Items]                            
Debt instrument basis spread               3.50%            
Industrial Revenue Bonds ("IRB") [Member]                            
Line Of Credit Facility [Line Items]                            
Long term debt           $ 9,191,000   $ 9,191,000         $ 9,191,000  
Number of industrial revenue bonds | Bond               2            
Industrial Revenue Bonds ("IRB") [Member] | Taxable Industrial Revenue Bond [Member]                            
Line Of Credit Facility [Line Items]                            
Long term debt           $ 7,116,000   $ 7,116,000            
Interest at a floating rate on IRB maturing in 2027/2029           4.41% 0.40% 4.42% 5.40%          
Industrial Revenue Bonds ("IRB") [Member] | Tax Exempt Industrial Revenue Bond Two [Member]                            
Line Of Credit Facility [Line Items]                            
Long term debt           $ 2,075,000   $ 2,075,000            
Interest at a floating rate on IRB maturing in 2027/2029           2.82% 3.62% 3.08% 3.80%