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Fair Value Measurements (Details) - Schedule of liabilities measured at fair value on recurring basis	Jun. 30, 2021 USD ($)
Level 1 [Member]
Liabilities:
Warrant Liability – Public Warrants	$ 6,831,000
Level 3 [Member]
Liabilities:
Warrant Liability – Private Placement Warrants	$ 3,812,400

X

- Definition

Warrant liability private placement warrants.

+ References

No definition available.

+ Details

Name:	rclf_WarrantLiabilityPrivatePlacementWarrants
Namespace Prefix:	rclf_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	rclf_WarrantLiabilityPublicWarrants
Namespace Prefix:	rclf_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	us-gaap_LiabilitiesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: