No definition available.

Name:	bcbp_StockholdersEquityNoteLineItems
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Data Type:	xbrli:stringItemType
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The percentage rate used to calculate dividend payments on preferred stock.

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Name:	us-gaap_PreferredStockDividendRatePercentage
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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

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Name:	us-gaap_PreferredStockParOrStatedValuePerShare
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Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

The cash inflow associated with the amount received from entity's raising of capital via private rather than public placement.

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Name:	us-gaap_ProceedsFromIssuanceOfPrivatePlacement
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Number of new stock issued during the period.

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BCB BANCORP INC 10-Q