| Cover | Sep. 09, 2020 |
| Schedule of Capitalization, Equity [Line Items] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Sep. 9, 2020 |
| Entity File Number | 001-38417 |
| Entity Registrant Name | Opes Acquisition Corp. |
| Entity Central Index Key | 0001723580 |
| Entity Tax Identification Number | 82-2418815 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 4218 NE 2nd Avenue |
| Entity Address, City or Town | Miami |
| Entity Address, State or Province | FL |
| Entity Address, Postal Zip Code | 33137 |
| City Area Code | (305) |
| Local Phone Number | 573-3900 |
| Written Communications | false |
| Soliciting Material | true |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
| Units, each consisting of one share of common stock and one redeemable warrant | |
| Schedule of Capitalization, Equity [Line Items] | |
| Title of 12(b) Security | Units, each consisting of one share of common stock and one redeemable warrant |
| Trading Symbol | OPESU |
| Security Exchange Name | NASDAQ |
| Common stock, par value $0.0001 per share | |
| Schedule of Capitalization, Equity [Line Items] | |
| Title of 12(b) Security | Common stock, par value $0.0001 per share |
| Trading Symbol | OPES |
| Security Exchange Name | NASDAQ |
| Redeemable warrants, each exercisable for one share of common stock at an exercise price of $11.50 per share | |
| Schedule of Capitalization, Equity [Line Items] | |
| Title of 12(b) Security | Redeemable warrants, each exercisable for one share of common stock at an exercise price of $11.50 per share |
| Trading Symbol | OPESW |
| Security Exchange Name | NASDAQ |
