| Document and Entity Information | Nov. 15, 2021 |
| Entity Listings [Line Items] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Nov. 15, 2021 |
| Entity Registrant Name | CHP MERGER CORP. |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-39140 |
| Entity Tax Identification Number | 84-2590924 |
| Entity Address, Address Line One | 25 Deforest Avenue, Suite 198 |
| 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 |
| Written Communications | true |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| Entity Central Index Key | 0001785041 |
| Units, each consisting of one share of Class A common stock, $0.0001 par value, and one half of one warrant [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 warrant |
| Trading Symbol | CHPMU |
| Security Exchange Name | NASDAQ |
| Common Class A [Member] | |
| Entity Listings [Line Items] | |
| Title of 12(b) Security | Class A common stock included as part of the units |
| Trading Symbol | CHPM |
| Security Exchange Name | NASDAQ |
| 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 per share [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 per share |
| Trading Symbol | CHPMW |
| Security Exchange Name | NASDAQ |
