| Document and Entity Information | Apr. 15, 2022 |
| Document And Entity Information [Line Items] | |
| Amendment Flag | false |
| Entity Central Index Key | 0001785041 |
| Document Type | 8-K |
| Document Period End Date | Apr. 15, 2022 |
| Entity Registrant Name | CHP MERGER CORP. |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 001-39140 |
| Entity Tax Identification Number | 84-2590924 |
| Entity Address, Address Line One | 25 Deforest Avenue |
| Entity Address, Address Line Two | 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 | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | true |
| Units Each Consisting Of One Share Of Class A Common Stock 0.0001 Par Value And One Half Of One Warrant [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | 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 |
| Capital Unit, Class A [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | 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] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | 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 |
