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v3.19.1

Note 44 - Related Parties - Transactions and Balances with Key Management Personnel (Details) - ARS ($) | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Credit Cards Member | Loans Member |  |  |
Transactions and Balances with Key Management Personnel LineItems |  |  |
Balances with Key Management Personnel | $ 2,907,000 | $ 3,595,000 | $ 3,514,000
Results with Key Management Personnel | 984,000 | 678,000 |
Overdrafts Member | Loans Member |  |  |
Transactions and Balances with Key Management Personnel LineItems |  |  |
Balances with Key Management Personnel | 19,000 | 30,000 | 0
Results with Key Management Personnel | 10,000 | 15,000 |
Consumer Loans Member | Loans Member |  |  |
Transactions and Balances with Key Management Personnel LineItems |  |  |
Balances with Key Management Personnel | 0 | 15,000 | 0
Results with Key Management Personnel | 0 | 10,000 |
Mortgage with Key Management Personnel Member | Loans Member |  |  |
Transactions and Balances with Key Management Personnel LineItems |  |  |
Balances with Key Management Personnel | 1,316,000 | 2,017,000 | 0
Results with Key Management Personnel | 289,000 | 275,000 |
Financial Leases Member | Loans Member |  |  |
Transactions and Balances with Key Management Personnel LineItems |  |  |
Balances with Key Management Personnel | 0 | 0 | 158,000
Results with Key Management Personnel | 0 | 1,000 |
Checking Account with Key Management Personnel Member | Deposits Member |  |  |
Transactions and Balances with Key Management Personnel LineItems |  |  |
Balances with Key Management Personnel | 8,000 | 18,000 | 6,000
Results with Key Management Personnel | 0 | 0 |
Saving Account with Key Management Personnel Member | Deposits Member |  |  |
Transactions and Balances with Key Management Personnel LineItems |  |  |
Balances with Key Management Personnel | 30,306,000 | 15,602,000 | 8,312,000
Results with Key Management Personnel | 120,000 | 75,000 |
Time Deposits Member | Deposits Member |  |  |
Transactions and Balances with Key Management Personnel LineItems |  |  |
Balances with Key Management Personnel | 0 | 0 | $ 11,619,000
Results with Key Management Personnel | $ 41,000 | $ 25,000 |

X
- Definition The amount of balances with key management personnel. + References No definition available. + Details
Name: | bfr_Balanceswithkeymanagementpersonnel
Namespace Prefix: | bfr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | bfr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of transactions with key management personnel. + References No definition available. + Details
Name: | bfr_Transactionswithkeymanagementpersonnel
Namespace Prefix: | bfr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bfr_LoansanddepositsaxisAxis=bfr_LoansmemberMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | bfr_TypesofbalancesandtransactionsaxisAxis=bfr_OverdraftsmemberMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
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- Details
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Data Type: | na
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Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | bfr_LoansanddepositsaxisAxis=bfr_DepositsmemberMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | bfr_TypesofbalancesandtransactionsaxisAxis=bfr_SavingaccountswithkeymanagementpersonnelmemberMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |