XML 46 R34.htm IDEA: XBRL DOCUMENT v3.22.4

Stockholders' Equity and Stock Plans (Tables)

12 Months Ended

Dec. 31, 2022

Equity [Abstract]

Schedule of Information of Cashless Exercise Prices

The table below depicts the total number of shares, amount, and weighted average price withheld for cashless exercises in each of the respective years.

			December 31, 2022			December 31, 2021			December 31, 2020
Number of shares withheld			11,505			27,929			10,001
Total amount withheld (in thousands)			$	393		$	1,085		$	398
Weighted-average price			$	34.13		$	38.85		$	39.83

Schedule of Share-based Compensation, Stock Options, Activity

A summary of stock option activity for the years ended December 31, 2022, 2021, and 2020 is presented in the following table. The intrinsic value of options outstanding and exercisable is calculated as the number of in-the-money options times the difference between the market price of our stock and the exercise prices of the in-the-money options as of each year-end period presented.

			Number of Shares			Weighted Average Exercise Price			Aggregate Intrinsic Value (in thousands)			Weighted Average Grant-Date Fair Value			Weighted Average Remaining Contractual Term (in years)
Options outstanding at December 31, 2019			417,382			$	28.01		$	7,112					5.50
Granted			44,632			39.18						6.84
Cancelled, expired or forfeited			(17,222)			40.31
Exercised			(73,208)			22.26			1,370
Options outstanding at December 31, 2020			371,584			29.92			2,262						5.12
Exercisable (vested) at December 31, 2020			315,377			28.05			2,254						4.53
Options outstanding at December 31, 2020			371,584			29.92			2,262						5.12
Granted			55,861			36.39						8.84
Cancelled, expired or forfeited			(2,008)			42.50
Exercised			(60,056)			23.01			885
Options outstanding at December 31, 2021			365,381			31.97			2,326						5.57
Exercisable (vested) at December 31, 2021			315,744			30.85			2,264						5.15
Options outstanding at December 31, 2021			365,381			31.97			2,326						5.57
Granted			39,094			34.16						8.49
Cancelled, expired or forfeited			(23,760)			37.48
Exercised			(51,010)			23.01			617
Options outstanding at December 31, 2022			329,705			33.22			813						5.59
Exercisable (vested) at December 31, 2022			287,228			32.81			813						5.15

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range

A summary of the options outstanding and exercisable by price range as of December 31, 2022 is presented in the following table:

			Stock Options Outstanding as of December 31, 2022												Stock Options Exercisable as of December 31, 2022
Range of Exercise Prices			Stock Options Outstanding			Remaining Contractual Life (in years)			Weighted Average Exercise Price						Stock Options Exercisable			Weighted Average Exercise Price
$10.00 - $20.00			10,852			0.4			$	19.69					10,852			$	19.69
$20.01 - $30.00			78,214			2.5			$	24.64					78,214			$	24.64
$30.01 - $40.00			175,929			6.9			$	34.58					139,906			$	34.41
$40.01 - $50.00			64,710			6.6			$	42.17					58,256			$	42.40
			329,705												287,228

Schedule of Unrecognized Compensation Cost, Nonvested Awards

The following table summarizes non-vested restricted stock awards and changes during the years ended December 31, 2022, 2021, and 2020.

			Number of Shares			Weighted Average Grant-Date Fair Value
Non-vested awards at December 31, 2019			70,066			37.81
Granted			29,100			40.10
Vested			(23,524)			36.35
Cancelled or forfeited			(14,314)			37.63
Non-vested awards at December 31, 2020			61,328			39.50
Granted			30,742			38.00
Vested			(26,392)			36.81
Cancelled or forfeited			(3,848)			33.96
Non-vested awards at December 31, 2021			61,830			40.25
Granted			46,672			34.03
Vested			(12,444)			41.49
Cancelled or forfeited			(13,692)			41.80
Non-vested awards at December 31, 2022			82,366			36.28

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

We determine the fair value of stock options at the grant date using the Black-Scholes pricing model that takes into account the stock price at the grant date, exercise price, and the following assumptions (weighted-average shown).

			Years ended December 31,
			2022			2021			2020
Risk-free interest rate			1.86		%	0.98		%	0.91		%
Expected dividend yield on common stock			2.85		%	2.57		%	2.38		%
Expected life in years			6.0			6.1			6.1
Expected price volatility			33.44		%	33.12		%	24.43		%

Summary of Cash Dividends Paid to Common Shareholders

Presented below is a summary of cash dividends paid in 2022, 2021 and 2020 to common shareholders, recorded as a reduction from retained earnings. On January 20, 2023, the Board of Directors declared a $0.25 per share cash dividend, paid February 10, 2023 to the shareholders of record at the close of business on February 3, 2023.

			Years ended December 31,
(in thousands except per share data)			2022			2021			2020
Cash dividends to common stockholders			$	15,673		$	13,107		$	12,506
Cash dividends per common share			$	0.98		$	0.94		$	0.92

X

- Definition

Share-based Payment Arrangement, Share Information about Cashless Exercises

+ References

No definition available.

+ Details

Name:	bmrc_ShareBasedPaymentArrangementShareInformationAboutCashlessExercisesTableTextBlock
Namespace Prefix:	bmrc_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of information related to dividends declared, including paid and unpaid dividends.

+ References

No definition available.

+ Details

Name:	us-gaap_DividendsDeclaredTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

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

X

- Definition

Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

+ Details

Name:	us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (e)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

+ Details

Name:	us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

+ Details

Name:	us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of cost not yet recognized and weighted-average period over which cost is expected to be recognized for nonvested award under share-based payment arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

+ Details

Name:	us-gaap_ScheduleOfUnrecognizedCompensationCostNonvestedAwardsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration