| Cover | Mar. 24, 2022 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Mar. 24, 2022 |
| Entity File Number | 1-13906 |
| Entity Registrant Name | BALLANTYNE STRONG, INC. |
| Entity Central Index Key | 0000946454 |
| Entity Tax Identification Number | 47-0587703 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 4201 Congress Street |
| Entity Address, Address Line Two | Suite 175 |
| Entity Address, City or Town | Charlotte |
| Entity Address, State or Province | NC |
| Entity Address, Postal Zip Code | 28209 |
| City Area Code | (704) |
| Local Phone Number | 994-8279 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Shares, $.01 par value |
| Trading Symbol | BTN |
| Security Exchange Name | NYSEAMER |
| Entity Emerging Growth Company | false |
| Entity Information, Former Legal or Registered Name | Not Applicable |
