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v3.25.1

Summary of Significant Accounting Policies (Details 1) | 12 Months Ended
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Dec. 31, 2024
Furniture & equipment [Member] | Maximum [Member] |
Property Plant and Equipment Estimated Useful Lives | 7 years
Furniture & equipment [Member] | Minimum [Member] |
Property Plant and Equipment Estimated Useful Lives | 3 years
Leasehold improvements [Member] |
Property Plant and Equipment Estimated Useful Lives | lesser of 8 years or the lease term
Computer Equipment [Member] |
Property Plant and Equipment Estimated Useful Lives | 3 years

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

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- References No definition available. + Details
Name: | abcd_PropertyPlantAndEquipmentUsefulLives
Namespace Prefix: | abcd_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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

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- Details
Name: | us-gaap_PlanNameAxis=abcd_TopMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_PlanNameAxis=abcd_BottomMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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