Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2021	Aug. 16, 2021
Entity Listings [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2021
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Document Transition Report	false
Entity File Number	001-39140
Entity Registrant Name	CHP MERGER CORP.
Entity Central Index Key	0001785041
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	84-2590924
Entity Address, Address Line One	25 Deforest Avenue, Suite 108
Entity Address, City or Town	Summit
Entity Address, State or Province	NJ
Entity Address, Postal Zip Code	07901
City Area Code	212
Local Phone Number	508-7090
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	true
Units [Member]
Entity Listings [Line Items]
Title of 12(b) Security	Units, each consisting of one share of Class A common stock, $0.0001 par value, and one-half of one redeemable warrant
Trading Symbol	CHPMU
Security Exchange Name	NASDAQ
Redeemable Common Stock [Member]
Entity Listings [Line Items]
Title of 12(b) Security	Redeemable common stock included as part of the units
Trading Symbol	CHPM
Security Exchange Name	NASDAQ
Warrants [Member]
Entity Listings [Line Items]
Title of 12(b) Security	Warrants included as part of the units, each whole warrant exercisable for one share of Class A common stock at an exercise price of $11.50
Trading Symbol	CHPMW
Security Exchange Name	NASDAQ
Class A Ordinary Shares [Member]
Entity Listings [Line Items]
Entity Common Stock, Shares Outstanding		30,000,000
Class B Ordinary Shares [Member]
Entity Listings [Line Items]
Entity Common Stock, Shares Outstanding		7,500,000