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Benefits Plans (Schedule of Fair Value of Plan Assets) (Details) - Pension Plan [Member] - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2020
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	$ 6,082	$ 6,012	$ 5,965	$ 7,144
(Level 1) Quoted Prices In Active Markets For Identical Assets [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	6,082	6,012
Mutual funds-Equity: Large-Cap Value [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	1,035	1,120
Mutual funds-Equity: Large-Cap Value [Member] | (Level 1) Quoted Prices In Active Markets For Identical Assets [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	1,035	1,120
Mutual-funds-Equity: Large-Cap Growth [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets		261
Mutual-funds-Equity: Large-Cap Growth [Member] | (Level 1) Quoted Prices In Active Markets For Identical Assets [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets		261
Mutual-funds-Equity: Diversified Emerging Markets [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	88	95
Mutual-funds-Equity: Diversified Emerging Markets [Member] | (Level 1) Quoted Prices In Active Markets For Identical Assets [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	88	95
Mutual funds-Equity: Large Blend [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	1,253	1,025
Mutual funds-Equity: Large Blend [Member] | (Level 1) Quoted Prices In Active Markets For Identical Assets [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	1,253	1,025
Mutual-funds-Equity: Technology [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	168	137
Mutual-funds-Equity: Technology [Member] | (Level 1) Quoted Prices In Active Markets For Identical Assets [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	168	137
Mutual Funds: Long Government [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	38	46
Mutual Funds: Long Government [Member] | (Level 1) Quoted Prices In Active Markets For Identical Assets [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	38	46
Mutual Funds-Fixed Income: Multi-Sector Bond [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	1,181	1,244
Mutual Funds-Fixed Income: Multi-Sector Bond [Member] | (Level 1) Quoted Prices In Active Markets For Identical Assets [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	1,181	1,244
Mutual funds-Fixed Income: High Yield Bond [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	622	648
Mutual funds-Fixed Income: High Yield Bond [Member] | (Level 1) Quoted Prices In Active Markets For Identical Assets [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	622	648
Mutual Funds: Intermediate Core Bond [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	595	656
Mutual Funds: Intermediate Core Bond [Member] | (Level 1) Quoted Prices In Active Markets For Identical Assets [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	595	656
Stock: BCB Common Stock [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	590	666
Stock: BCB Common Stock [Member] | (Level 1) Quoted Prices In Active Markets For Identical Assets [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	590	666
Cash Equivalents: Money Market [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	512	114
Cash Equivalents: Money Market [Member] | (Level 1) Quoted Prices In Active Markets For Identical Assets [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	$ 512	$ 114

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- Definition

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.

+ References

No definition available.

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- Definition

Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

+ References

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