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v3.23.2

Net Revenue - Trade Sale Revenue (Detail) - USD ($) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Dec. 31, 2022
Revenue from Contract with Customer [Abstract] |  |  |  |  |
Trade sales receivable | $ 1,973,948 |  | $ 1,973,948 |  | $ 1,564,054
Trade sales payable | 849,333 |  | 849,333 |  | $ 806,162
Trade sales revenue | $ 1,466,652 | $ 1,504,105 | $ 2,847,494 | $ 2,876,678 |

X
- Definition Trade sales payable. + References No definition available. + Details
Name: | bbgi_TradeSalesPayable
Namespace Prefix: | bbgi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Trade sales receivable. + References No definition available. + Details
Name: | bbgi_TradeSalesReceivable
Namespace Prefix: | bbgi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Trade sales revenue. + References No definition available. + Details
Name: | bbgi_TradeSalesRevenue
Namespace Prefix: | bbgi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_RevenueFromContractWithCustomerAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration