Name:	myfw_FinancingReceivableExcludingAccruedInterestModifiedIncreaseDecreaseFromModificationInterestRateRedduction
Namespace Prefix:	myfw_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Financing Receivable, Excluding Accrued Interest, Modified, Increase (Decrease) from Modification, Term Extension

No definition available.

Name:	myfw_FinancingReceivableExcludingAccruedInterestModifiedIncreaseDecreaseFromModificationTermExtension
Namespace Prefix:	myfw_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Financing Receivable, Excluding Accrued Interest, Modified, Increase (Decrease) from Modification, Term Extension And Interest Rate Reduction

No definition available.

Name:	myfw_FinancingReceivableExcludingAccruedInterestModifiedIncreaseDecreaseFromModificationTermExtensionAndInterestRateReduction
Namespace Prefix:	myfw_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Financing Receivable, Excluding Accrued Interest, Modified, Increase (Decrease) from Modification, Term Extension And Principal Forgiveness

No definition available.

Name:	myfw_FinancingReceivableExcludingAccruedInterestModifiedIncreaseDecreaseFromModificationTermExtensionAndPrincipalForgiveness
Namespace Prefix:	myfw_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Financing Receivable, Excluding Accrued Interest, Modified, Weighted Average Interest Rate Reduction

No definition available.

Name:	myfw_FinancingReceivableExcludingAccruedInterestModifiedWeightedAverageInterestRateReduction
Namespace Prefix:	myfw_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Financing Receivable, Excluding Accrued Interest, Modified, Weighted Average Term Extension

No definition available.

Name:	myfw_FinancingReceivableExcludingAccruedInterestModifiedWeightedAverageTermExtension
Namespace Prefix:	myfw_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Amount of increase (decrease) in amortized cost excluding accrued interest, of financing receivable modified for debtor experiencing financial difficulty.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Subparagraph (a)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-42

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

Percentage, excluding accrued interest, of financing receivable modified during period for debtor experiencing financial difficulty to total financing receivables.

Name:	us-gaap_FinancingReceivableModificationToTotalFinancingReceivablesExcludingAccruedInterestPercent
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

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.

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

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Subparagraph (a)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-42

Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 12A
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481933/310-10-55-12A

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 33
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-33

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 34
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-34