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Benefits Plans (Schedule of Fair Value of Plan Assets) (Details) - Pension Plan [Member] - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	$ 6,012	$ 5,965	$ 7,144	$ 7,112
(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	6,012	5,965
Mutual funds-Equity: Large-Cap Value [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	1,120	1,052
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	1,120	1,052
Mutual-funds-Equity: Large-Cap Growth [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	261	170
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	170
Mutual-funds-Equity: Diversified Emerging Markets [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	95	96
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	95	96
Mutual funds-Equity: Large Blend [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	1,025	957
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	1,025	957
Mutual-funds-Equity: Technology [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	137	96
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	137	96
Mutual Funds: Long Government [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	46	48
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	46	48
Mutual Funds-Fixed Income: Multi-Sector Bond [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	1,244	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	1,244	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	648	622
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	648	622
Mutual Funds: Intermediate Core Bond [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	656	670
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	656	670
Stock: BCB Common Stock [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	666	932
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	666	932
Cash Equivalents: Money Market [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	114	78
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	$ 114	$ 78

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- Definition

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+ 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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