Debt - Additional Information (Detail)		1 Months Ended	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 29, 2022 USD ($)	Sep. 30, 2018 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2021	Sep. 30, 2022 USD ($) Bond	Sep. 30, 2021	Dec. 31, 2023 USD ($)	Oct. 01, 2022 USD ($)	Jun. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)	Jun. 30, 2021 USD ($)
Line Of Credit Facility [Line Items]
Swing loans			$ 1,461,000		$ 1,461,000					$ 8,744,000
Lessee lease term		20 years
Lessee, operating lease, option to extend					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			8.00%	8.00%	8.00%	8.00%
Rental properties								$ 2,939,000
Number of industrial revenue bonds | Bond					2
Industrial Revenue Bonds ("IRB") [Member]
Line Of Credit Facility [Line Items]
Long term debt			$ 9,191,000		$ 9,191,000					9,191,000
Capital Additions [Member]
Line Of Credit Facility [Line Items]
Estimated cost on upgrading existing equipment		$ 2,500,000			$ 27,000,000
Store Capital Acquisitions [Member]
Line Of Credit Facility [Line Items]
Proceeds from sale of land		$ 15,500,000
Maximum [Member]
Line Of Credit Facility [Line Items]
Incremental percentage on annual lease payment		2.20%
Change in consumer price index percentage		1.25%
Revolving Credit Facility [Member]
Line Of Credit Facility [Line Items]
Agreement borrowing capacity									$ 130,000,000
Allowance for new equipment financing							$ 20,000,000
Maturity date							Jun. 29, 2026
Commitment fee payable percentage					0.25%
Interest on outstanding balance			4.00%		4.00%
Long term debt			$ 45,461,000		$ 45,461,000					29,744,000
Line of credit, remaining borrowing capacity			$ 35,622,000		$ 35,622,000
Deferred financing fees											$ 485,000
Revolving Credit Facility [Member] | Minimum [Member]
Line Of Credit Facility [Line Items]
Fixed charge coverage ratio			1.05		1.05
Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]
Line Of Credit Facility [Line Items]
Debt instrument description of interest rate					LIBOR plus an applicable margin ranging between 2.00% to 2.50% based on the quarterly average excess availability
Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]
Line Of Credit Facility [Line Items]
Debt instrument basis spread					2.00%
Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member]
Line Of Credit Facility [Line Items]
Debt instrument basis spread					2.50%
Revolving Credit Facility [Member] | Base Rate [Member]
Line Of Credit Facility [Line Items]
Debt instrument description of interest rate					the alternate base rate plus an applicable margin ranging between 1.00% to 1.50%
Revolving Credit Facility [Member] | Base Rate [Member] | Minimum [Member]
Line Of Credit Facility [Line Items]
Debt instrument basis spread					1.00%
Revolving Credit Facility [Member] | Base Rate [Member] | Maximum [Member]
Line Of Credit Facility [Line Items]
Debt instrument basis spread					1.50%
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
Borrowings			$ 0		$ 0					0
Revolving Credit Facility [Member] | Swedish Credit Facility [Member]
Line Of Credit Facility [Line Items]
Agreement borrowing capacity									$ 7,500,000
Revolving Credit Facility [Member] | Credit Facility [Member]
Line Of Credit Facility [Line Items]
Long term debt			45,461,000		45,461,000
Sale and Leaseback Financing Obligations [Member]
Line Of Credit Facility [Line Items]
Long term debt			36,303,000		36,303,000					20,546,000
Deferred financing fees			$ 104,000		$ 104,000
Lessee lease term			20 years		20 years
Taxable Industrial Revenue Bond [Member] | Industrial Revenue Bonds ("IRB") [Member]
Line Of Credit Facility [Line Items]
Tax-exempt IRB maturing in 2027/2029					$ 7,116,000
Taxable Industrial Revenue Bond [Member] | Maximum [Member] | Industrial Revenue Bonds ("IRB") [Member]
Line Of Credit Facility [Line Items]
Interest at a floating rate on tax-exempt IRB maturing in 2027/2029			2.40%	1.00%	1.40%	1.00%
Tax Exempt Industrial Revenue Bond Two [Member] | Industrial Revenue Bonds ("IRB") [Member]
Line Of Credit Facility [Line Items]
Tax-exempt IRB maturing in 2027/2029					$ 2,075,000
Tax Exempt Industrial Revenue Bond Two [Member] | Maximum [Member] | Industrial Revenue Bonds ("IRB") [Member]
Line Of Credit Facility [Line Items]
Interest at a floating rate on tax-exempt IRB maturing in 2027/2029			2.40%	1.00%	1.40%	1.00%
Equipment Financing Facility [Member]
Line Of Credit Facility [Line Items]
Agreement borrowing capacity	$ 20,000,000
Debt instrument basis spread	4.50%
Long term debt			$ 4,014,000		$ 4,014,000					$ 0
Effective interest rate	8.00%
Debt Instrument, Term	84 months