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Note 7 - Operating Leases (Tables)

3 Months Ended

Mar. 31, 2024

Notes Tables

Lease, Cost [Table Text Block]

		Three-month period ended March 31,
		2024				2023
Operating lease cost		$	262			$	241
Variable lease cost			28				28
Total lease cost		$	290			$	269

Lessee, Lease, Cash Flow Information [Table Text Block]

		Three-month period ended March 31,
		2024				2023
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases		$	265			$	226
Right-of-use assets obtained in exchange for lease liabilities:		$	-			$	-

Lessee, Lease, Balance Sheet Information [Table Text Block]

	Balance sheet classification		March 31, 2024				December 31, 2023
Assets:
Operating lease right-of-use asset	Other noncurrent assets		$	3,177			$	3,589
Liabilities:
Current operating lease liability	Accrued expenses and other current liabilities		$	780			$	894
Operating lease liability, net of current portion	Other noncurrent liabilities			2,350				2,644
Total operating lease liability			$	3,130			$	3,538
Weighted-average remaining lease term (years)				5.2				5.3
Weighted-average discount rate				6.3	%			4.5	%

Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block]

Maturity of operating lease liabilities
2024		$	620
2025			691
2026			618
2027			639
2028			642
Thereafter			458
Total lease payments			3,668
Less: Imputed interest			(538	)
Present value of remaining lease payments		$	3,130

X

- Definition

Tabular disclosure of balance sheet information related lessee's lease .

+ References

No definition available.

+ Details

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Namespace Prefix:	ulbi_
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X

- Definition

Tabular disclosure of cash flow information related lessee's lease .

+ References

No definition available.

+ Details

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Namespace Prefix:	ulbi_
Data Type:	dtr-types:textBlockItemType
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X

- Definition

Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-4

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X

- Definition

Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-6

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- References

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	duration