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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

No definition available.

Name:	bcml_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossesIndividuallyEvaluatedForImpairment
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Amortized cost excluding accrued interest, before deferred loans fees and allowance for credit loss, of financing receivable. Excludes net investment in lease.

No definition available.

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Data Type:	xbrli:monetaryItemType
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The balance of financing receivables that were collectively evaluated for impairment.

No definition available.

Name:	bcml_FinancingReceivableExcludingAccruedInterestCollectivelyEvaluatedForImpairment
Namespace Prefix:	bcml_
Data Type:	xbrli:monetaryItemType
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The balance of financing receivables that were individually evaluated for impairment.

No definition available.

Name:	bcml_FinancingReceivableExcludingAccruedInterestIndividuallyEvaluatedForImpairment
Namespace Prefix:	bcml_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

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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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