v3.26.3
Debt - Additional Information (Detail)
1 Months Ended 3 Months Ended 9 Months Ended
Oct. 01, 2026
USD ($)
Sep. 16, 2026
USD ($)
Sep. 29, 2022
USD ($)
Jun. 30, 2023
USD ($)
Aug. 31, 2022
USD ($)
Sep. 30, 2026
USD ($)
Sep. 30, 2025
Sep. 30, 2026
USD ($)
Bond
Sep. 30, 2025
Oct. 13, 2026
Dec. 31, 2025
USD ($)
Jun. 25, 2025
USD ($)
Oct. 14, 2022
Line Of Credit Facility [Line Items]                          
Swing loans           $ 0   $ 0     $ 1,219,000    
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          
Revolving Credit Facility [Member]                          
Line Of Credit Facility [Line Items]                          
Agreement borrowing capacity                       $ 125,000,000  
Maturity date               Jun. 25, 2030          
Long term debt           42,000,000   $ 42,000,000     52,219,000    
Line of credit, remaining borrowing capacity           31,473,000   31,473,000          
Debt issuance costs           $ 891,000   $ 891,000          
Effective interest rate during period           6.59% 7.38% 6.51% 7.22%        
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           $ 46,827,000   $ 46,827,000     46,296,000    
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 Second Amended and Restated Lease would expire in August 2062          
Lessee, operating term period                         5 years
Extended lease expiration date                   2066-06     2062-08
Initial term                   2042-08      
Extended term                   2046-06      
Lease repurchase percentage on lessor investment for properties                         115.00%
Effective interest rate during period           8.29% 8.29% 8.29% 8.28%        
Rental properties           $ 3,795,000   $ 3,795,000          
Sale and Leaseback Financing Obligations [Member] | Subsequent Event [Member]                          
Line Of Credit Facility [Line Items]                          
Lessee lease term                   20 years      
Incremental percentage on annual lease payment 2.04%                        
Rental properties $ 3,873,000                        
Sale and Leaseback Financing Obligations [Member] | Capital Additions [Member]                          
Line Of Credit Facility [Line Items]                          
Estimated cost on upgrading existing equipment   $ 1,100,000     $ 2,500,000     $ 0          
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          
Taxable Industrial Revenue Bond [Member] | Industrial Revenue Bonds ("IRB") [Member]                          
Line Of Credit Facility [Line Items]                          
Maturity date               Nov. 01, 2027          
Long term debt           $ 7,116,000   $ 7,116,000          
Interest at a floating rate on tax-exempt IRB maturing in 2027/2029           3.84% 4.41% 3.77% 4.42%        
Tax Exempt Industrial Revenue Bond Two [Member] | Industrial Revenue Bonds ("IRB") [Member]                          
Line Of Credit Facility [Line Items]                          
Maturity date               Mar. 01, 2029          
Long term debt           $ 2,075,000   $ 2,075,000          
Interest at a floating rate on tax-exempt IRB maturing in 2027/2029           2.44% 2.82% 2.48% 3.08%        
Equipment Financing Facility [Member]                          
Line Of Credit Facility [Line Items]                          
Agreement borrowing capacity     $ 20,000,000                    
Long term debt           $ 12,895,000   $ 12,895,000     14,633,000    
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           8.55% 8.66% 8.56% 8.66%        
Equipment Financing Facility [Member] | Term Notes [Member] | Minimum [Member]                          
Line Of Credit Facility [Line Items]                          
Effective interest rate           8.40%   8.40%          
Equipment Financing Facility [Member] | Term Notes [Member] | Maximum [Member]                          
Line Of Credit Facility [Line Items]                          
Effective interest rate           9.22%   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 during the next 12 months          
Long term debt           $ 8,452,000   $ 8,452,000     $ 9,898,000    
Notes maturity date           2030-06   2030-06          
Effective interest rate during period           7.31% 7.94% 7.29%          
Equipment Term Notes [Member] | SOFR [Member]                          
Line Of Credit Facility [Line Items]                          
Debt instrument description of interest rate               Borrowings under the Equipment Term Notes 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%