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Note 7 - Operating Leases (Tables)

3 Months Ended

Mar. 31, 2023

Notes Tables

Lease, Cost [Table Text Block]

		Three-month period ended March 31,
		2023				2022
Operating lease cost		$	241			$	233
Variable lease cost			28				24
Total lease cost		$	269			$	257

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

		Three-month period ended March 31,
		2023				2022
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases		$	226			$	227
Right-of-use assets obtained in exchange for lease liabilities:		$	-			$	-

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

	Balance sheet classification		March 31, 2023				December 31, 2022
Assets:
Operating lease right-of-use asset	Other noncurrent assets		$	2,039			$	2,187
Liabilities:
Current operating lease liability	Accrued expenses and other current liabilities		$	906			$	895
Operating lease liability, net of current portion	Other noncurrent liabilities			1,130				1,307
Total operating lease liability			$	2,036			$	2,202
Weighted-average remaining lease term (years)				4.7				4.7
Weighted-average discount rate				4.5	%			4.5	%

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

Maturity of operating lease liabilities
2023			697
2024			519
2025			215
2026			217
2027			217
Thereafter			426
Total lease payments			2,291
Less: Imputed interest			(255	)
Present value of remaining lease payments		$	2,036

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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Balance Type:	na
Period Type:	duration

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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Namespace Prefix:	us-gaap_
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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