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Financing Receivable, Modifications, Accrued Interest Balance of Payment Deferrals Subject to Modification terms

No definition available.

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Financing Receivable, Modifications, Outstanding Balance of Payment Deferrals Subject to Modification Terms

No definition available.

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Outstanding balance of loans for which payments were deferred for financing receivables modified in accordance with payment deferral guidelines outlined in the CARES Act.

No definition available.

Name:	unb_FinancingReceivableModificationsOutstandingBalanceofPaymentDeferrals
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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Number of financing receivable contracts modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953682-111524

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Amount of financing receivable modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953682-111524