| Cover | Jul. 26, 2023 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Jul. 26, 2023 |
| Entity File Number | 001-41443 |
| Entity Registrant Name | NETCAPITAL INC. |
| Entity Central Index Key | 0001414767 |
| Entity Tax Identification Number | 87-0409951 |
| Entity Incorporation, State or Country Code | UT |
| Entity Address, Address Line One | State Street Financial Center |
| Entity Address, Address Line Two | 1 Lincoln Street |
| Entity Address, City or Town | Boston |
| Entity Address, State or Province | MA |
| Entity Address, Postal Zip Code | 02111 |
| City Area Code | 782 |
| Local Phone Number | 925-1700 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, $0.001 par value per share |
| Trading Symbol | NCPL |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
