XML 61 R43.htm IDEA: XBRL DOCUMENT v3.25.0.1

Financial Instruments with Off-Balance Sheet Risk (Tables)

12 Months Ended

Dec. 31, 2024

Fair Value Disclosures [Abstract]

Schedule of Contractual Amount, Off-Balance Sheet Risks

The contractual amount of unfunded loan commitments and standby letters of credit not reflected in the consolidated statements of condition are as follows:

(in thousands)			December 31, 2024			December 31, 2023
Commercial lines of credit			$	233,462		$	259,989
Revolving home equity lines			208,372			218,935
Undisbursed construction loans			8,294			13,943
Personal and other lines of credit			7,781			9,136
Standby letters of credit			2,777			3,147
Total unfunded loan commitments and standby letters of credit			$	460,686		$	505,150

X

- Definition

Schedule Of Contractual Amount, Off-Balance Sheet Risks [Table Text Block]

+ References

No definition available.

+ Details

Name:	bmrc_ScheduleOfContractualAmountOffBalanceSheetRisksTableTextBlock
Namespace Prefix:	bmrc_
Data Type:	dtr-types1:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

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