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Benefits Plans (Schedule of Fair Value of Plan Assets) (Details) - Pension Plan [Member] - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | --- | ---
Defined Benefit Plan Fair Value Of Plan Assets [Line Item] |  |  |  |
Fair value of plan assets |  | $ 7,144 | $ 7,112 | $ 7,576
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |  |  |
Defined Benefit Plan Fair Value Of Plan Assets [Line Item] |  |  |  |
Fair value of plan assets |  | 7,144 | 7,112 |
Mutual funds-Equity: Large-Cap Value [Member] |  |  |  |
Defined Benefit Plan Fair Value Of Plan Assets [Line Item] |  |  |  |
Fair value of plan assets | [1] | 1,021 | 954 |
Mutual funds-Equity: Large-Cap Value [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |  |  |
Defined Benefit Plan Fair Value Of Plan Assets [Line Item] |  |  |  |
Fair value of plan assets | [1] | 1,021 | 954 |
Mutual-funds-Equity: Large-Cap Growth [Member] |  |  |  |
Defined Benefit Plan Fair Value Of Plan Assets [Line Item] |  |  |  |
Fair value of plan assets | [2] | 259 |  |
Mutual-funds-Equity: Large-Cap Growth [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |  |  |
Defined Benefit Plan Fair Value Of Plan Assets [Line Item] |  |  |  |
Fair value of plan assets | [2] | 259 |  |
Mutual-funds-Equity: Diversified Emerging Markets [Member] |  |  |  |
Defined Benefit Plan Fair Value Of Plan Assets [Line Item] |  |  |  |
Fair value of plan assets | [3] | 247 | 323 |
Mutual-funds-Equity: Diversified Emerging Markets [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |  |  |
Defined Benefit Plan Fair Value Of Plan Assets [Line Item] |  |  |  |
Fair value of plan assets | [3] | 247 | 323 |
Mutual funds-Equity: Large Blend [Member] |  |  |  |
Defined Benefit Plan Fair Value Of Plan Assets [Line Item] |  |  |  |
Fair value of plan assets | [4] | 1,748 | 1,592 |
Mutual funds-Equity: Large Blend [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |  |  |
Defined Benefit Plan Fair Value Of Plan Assets [Line Item] |  |  |  |
Fair value of plan assets | [4] | 1,748 | 1,592 |
Mutual-funds-Equity: Technology [Member] |  |  |  |
Defined Benefit Plan Fair Value Of Plan Assets [Line Item] |  |  |  |
Fair value of plan assets | [5] | 305 | 314 |
Mutual-funds-Equity: Technology [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |  |  |
Defined Benefit Plan Fair Value Of Plan Assets [Line Item] |  |  |  |
Fair value of plan assets | [5] | 305 | 314 |
Mutual Funds: Long Government [Member] |  |  |  |
Defined Benefit Plan Fair Value Of Plan Assets [Line Item] |  |  |  |
Fair value of plan assets | [6] | 204 | 252 |
Mutual Funds: Long Government [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |  |  |
Defined Benefit Plan Fair Value Of Plan Assets [Line Item] |  |  |  |
Fair value of plan assets | [6] | 204 | 252 |
Mutual Funds-Fixed Income: Multi-Sector Bond [Member] |  |  |  |
Defined Benefit Plan Fair Value Of Plan Assets [Line Item] |  |  |  |
Fair value of plan assets | [7] | 1,047 | 1,192 |
Mutual Funds-Fixed Income: Multi-Sector Bond [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |  |  |
Defined Benefit Plan Fair Value Of Plan Assets [Line Item] |  |  |  |
Fair value of plan assets | [7] | 1,047 | 1,192 |
Mutual funds-Fixed Income: High Yield Bond [Member] |  |  |  |
Defined Benefit Plan Fair Value Of Plan Assets [Line Item] |  |  |  |
Fair value of plan assets | [8] | 732 | 818 |
Mutual funds-Fixed Income: High Yield Bond [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |  |  |
Defined Benefit Plan Fair Value Of Plan Assets [Line Item] |  |  |  |
Fair value of plan assets | [8] | 732 | 818 |
Mutual Funds: Intermediate Core Bond [Member] |  |  |  |
Defined Benefit Plan Fair Value Of Plan Assets [Line Item] |  |  |  |
Fair value of plan assets | [9] | 737 | 878 |
Mutual Funds: Intermediate Core Bond [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |  |  |
Defined Benefit Plan Fair Value Of Plan Assets [Line Item] |  |  |  |
Fair value of plan assets | [9] | 737 | 878 |
Stock: BCB Common Stock [Member] |  |  |  |
Defined Benefit Plan Fair Value Of Plan Assets [Line Item] |  |  |  |
Fair value of plan assets |  | 800 | 574 |
Stock: BCB Common Stock [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |  |  |
Defined Benefit Plan Fair Value Of Plan Assets [Line Item] |  |  |  |
Fair value of plan assets |  | 800 | 574 |
Cash Equivalents: Money Market [Member] |  |  |  |
Defined Benefit Plan Fair Value Of Plan Assets [Line Item] |  |  |  |
Fair value of plan assets |  | 44 | 215 |
Cash Equivalents: Money Market [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |  |  |
Defined Benefit Plan Fair Value Of Plan Assets [Line Item] |  |  |  |
Fair value of plan assets |  | $ 44 | $ 215 |
[1] | Large-value portfolios invest primarily in big U.S. companies that are less expensive or growing more slowly than other large-cap stocks. Stocks in the top 70 percent of the capitalization of the U.S. equity market are defined as large cap. Value is defined based on low valuations (low price ratios and high dividend yields) and slow growth (low growth rates for earnings, sales, book value, and cash flow).
[2] | Large Cap Growth Stocks of large cap companies that are projected to grow faster than other large cap stocks. Stocks in the top 70% of the capitalization of the U.S. equity market defined as large cap. Growth is defined based on fast growth (high growth rates for earnings, sales, book value, and cash flow) and high valuations (high price ratios and low dividend yields).
[3] | The fund invests at least 80% of the value of its assets in equity securities and equity related instruments that are tied economically to emerging markets.
[4] | This fund invests in 500 of the largest U.S. companies, which span many different industries and account for about three-fourths of the U.S. Stock Markets value.
[5] | The fund normally invests at least 80% of the fund’s net assets in securities of issuers principally engaged in offering, using or developing products, processes or services that will provide or benefit significantly from technological advances and improvements.
[6] | The fund normally invests at least 80% of assets in securities included in the Bloomberg Barclays U.S. Long Treasury Bond Index.
[7] | Multi Sector portfolios seek income by diversifying their assets among several fixed-income sectors, usually U.S. government obligations, foreign bonds, and high-yield domestic debt securities.
[8] | High Yield Bond funds invest at least 65 percent of assets in bonds rated below BBB. This fund seeks to provide shareholders with a high level of current income with capital growth as a secondary objective.
[9] | Intermediate term core bond portfolios invest primarily in investment grade U.S. fixed-income issues including government, corporate, and securitized debt, and hold less than 5% in below-investment grade exposures.

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