| Cover | Oct. 28, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Oct. 28, 2021 |
| Entity File Number | 001-11929 |
| Entity Registrant Name | Dover Motorsports, Inc. |
| Entity Central Index Key | 0001017673 |
| Entity Tax Identification Number | 51-0357525 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 1131 N. DuPont Highway |
| Entity Address, City or Town | Dover |
| Entity Address, State or Province | DE |
| Entity Address, Postal Zip Code | 19901 |
| City Area Code | 302 |
| Local Phone Number | 883-6500 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, $.10 Par Value |
| Trading Symbol | DVD |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
