XML 61 R52.htm IDEA: XBRL DOCUMENT v3.23.3

INVESTMENT SECURITIES - Realized Gains (Details) - security	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Investments, Debt and Equity Securities [Abstract]
Number of available for sale debt securities sold	0	0	0	1

X

- Definition

The number of available for sale debt securities sold during the period.

+ References

No definition available.

+ Details

Name:	bcml_NumberOfAvailableForSaleDebtSecuritiesSold
Namespace Prefix:	bcml_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

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