| Cover | Oct. 04, 2023 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Oct. 04, 2023 |
| Entity File Number | 000-31549 |
| Entity Registrant Name | PCT LTD |
| Entity Central Index Key | 0001119897 |
| Entity Tax Identification Number | 90-0578516 |
| Entity Incorporation, State or Country Code | NV |
| Entity Address, Address Line One | 4235 Commerce Street |
| Entity Address, City or Town | Little River |
| Entity Address, State or Province | SC |
| Entity Address, Postal Zip Code | 29566 |
| City Area Code | 843 |
| Local Phone Number | 390-7900 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
