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FAIR VALUE MEASUREMENTS - Additional Information (Details) - USD ($)	1 Months Ended	3 Months Ended
	Dec. 31, 2020	Mar. 31, 2021	Nov. 23, 2020
Warrants Liabilities
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Transfers out of level 3	$ 1,597,900
Transfers in or out of level 3		$ 0
Private Placement Warrants
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Aggregate value of warrants	153,347		$ 82,460
Warrants per share			$ 57
Public Warrants
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Aggregate value of warrants	$ 3,250,667		$ 1,748,000
Warrants per share			$ 57

X

- Definition

Warrant liability fair value disclosure

+ References

No definition available.

+ Details

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Namespace Prefix:	chfw_
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Balance Type:	credit
Period Type:	instant

X

- Definition

Warrants per share.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	instant

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

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Namespace Prefix:	us-gaap_
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X

- Definition

Amount of transfers of financial instrument classified as a liability out of level 3 of the fair value hierarchy.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(3)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

+ Details

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X

- Definition

Amount of transfers of financial instrument classified as a liability into (out of) level 3 of the fair value hierarchy.

+ References

No definition available.

+ Details

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X

- Details

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Namespace Prefix:
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Balance Type:
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X

- Details

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X

- Details

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