| Document and Entity Information | Dec. 21, 2022 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Dec. 21, 2022 |
| Entity File Number | 000-01665 |
| Entity Registrant Name | KINGSTONE COMPANIES, INC. |
| Entity Central Index Key | 0000033992 |
| Entity Incorporation, State or Country Code | DE |
| Entity Tax Identification Number | 36-2476480 |
| Entity Address, Address Line One | 15 Joys Lane |
| Entity Address, City or Town | Kingston |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 12401 |
| City Area Code | 845 |
| Local Phone Number | 802-7900 |
| Title of 12(b) Security | Common Stock, $0.01 par value per share |
| Trading Symbol | KINS |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
