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v3.23.3

Summary of significant accounting policies (Details) | 6 Months Ended
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Jun. 30, 2023
Leasehold Improvements [Member] |
Property, Plant and Equipment [Line Items] |
Property, plant and equipment, estimated useful lives | Shorter of the remaining lease terms or estimated useful lives
Electronic Devices [Member] |
Property, Plant and Equipment [Line Items] |
Property, plant and equipment, estimated useful lives | 3-5 years
Furniture and Fixtures [Member] |
Property, Plant and Equipment [Line Items] |
Property, plant and equipment, estimated useful lives | 3-5 years
Automobiles [Member] |
Property, Plant and Equipment [Line Items] |
Property, plant and equipment, estimated useful lives | 3-5 years
Computer And Network Equipment [Member] |
Property, Plant and Equipment [Line Items] |
Property, plant and equipment, estimated useful lives | 3-5 years

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

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=ifbd_ElectronicDevicesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_AutomobilesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=ifbd_ComputerAndNetworkEquipmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |