Number of of financing receivable with payment default in current period and modified within previous 12 months preceding payment default for debtor experiencing financial difficulty.

No definition available.

+ Details

Name:	nbhc_FinancingReceivableExcludingAccruedInterestModifiedSubsequentDefaultNumberOfLoans
Namespace Prefix:	nbhc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 20
-Name Accounting Standards Codification
-Section 40
-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481628/310-20-40-7

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481990/310-10-45-2

+ Details

Name:	us-gaap_AccountsNotesAndLoansReceivableLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amortized cost excluding accrued interest, of financing receivable 12 months after modification for debtor experiencing financial difficulty.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Subparagraph (a)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-42

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestModifiedPast12Months
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amortized cost excluding accrued interest, of financing receivable with payment default in current period and modified within previous 12 months preceding payment default for debtor experiencing financial difficulty.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 44
-Subparagraph (a)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-44

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestModifiedSubsequentDefault
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancialAssetNotPastDueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=nbhc_CommercialAndIndustrialLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=nbhc_OwnerOccupiedCommercialMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialRealEstatePortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=nbhc_NonOwnerOccupiedCommercialMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ResidentialPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_SeniorLienMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivablesPeriodPastDueAxis=nbhc_FinancialAsset30To89DaysPastDueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_JuniorLienMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Loans - Schedule of Payment Status of Financing Receivable Modified Past 12 Months (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2024 USD ($) loan	Sep. 30, 2024 USD ($) loan	Sep. 30, 2023 USD ($) loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
TDR's modified within the past year that defaulted on their restructured terms \| loan	0	2	1
Value of TDMs/TDRs modified within past 12 months		$ 5,700	$ 13,500
Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 5,534	5,534	6,059
Current \| Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	4,513	4,513	114
Current \| Commercial \| Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	2,849	2,849	114
Current \| Commercial \| Owner occupied commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,664	1,664
Current \| Commercial real estate non-owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	167	167	5,292
Current \| Commercial real estate non-owner occupied \| Non-owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	167	167	5,292
Current \| Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans			653
Value of TDMs/TDRs modified within past 12 months		854
Current \| Residential real estate \| Senior lien
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	854	854	653
30-89 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	12,889	12,889
30-89 days past due \| Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	7,621	7,621
30-89 days past due \| Commercial \| Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	7,621	7,621
30-89 days past due \| Commercial real estate non-owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	5,268	5,268
30-89 days past due \| Commercial real estate non-owner occupied \| Non-owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	5,268	5,268
Non-accrual
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	5,803	5,803	13,472
Non-accrual \| Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	5,354	5,354
Non-accrual \| Commercial \| Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	5,354	5,354
Non-accrual \| Commercial real estate non-owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans			13,472
Non-accrual \| Commercial real estate non-owner occupied \| Non-owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans			$ 13,472
Non-accrual \| Residential real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Value of TDMs/TDRs modified within past 12 months		449
Non-accrual \| Residential real estate \| Senior lien
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	404	404
Non-accrual \| Residential real estate \| Junior lien
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 45	$ 45