XML 33 R24.htm IDEA: XBRL DOCUMENT v3.23.3

Note 1 - Basis of Presentation (Details Textual) $ in Thousands	Sep. 30, 2023 USD ($)
Employee Retention Credit (ERC) [Member]
Government Assistance, Amount, Cumulative, Current	$ 1,544

X

- Definition

Amount of cumulative government assistance recognized classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 832
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483507/832-10-50-3

+ Details

Name:	us-gaap_GovernmentAssistanceAmountCumulativeCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_GovernmentAssistanceTypeAxis=ulbi_EmployeeRetentionCreditERCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: