| Cover | Aug. 09, 2022 |
| Cover [Abstract] | |
| Entity Registrant Name | Insignia Systems, Inc./MN |
| Entity Central Index Key | 0000875355 |
| Document Type | 8-K |
| Amendment Flag | false |
| Entity Emerging Growth Company | false |
| Document Period End Date | Aug. 09, 2022 |
| Entity Incorporation State Country Code | MN |
| Entity Tax Identification Number | 41-1656308 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Entity File Number | 001-13471 |
| Entity Address Address Line 1 | 212 Third Avenue N |
| Entity Address Address Line 2 | Suite 356 |
| Entity Address State Or Province | MN |
| Entity Address Postal Zip Code | 55401 |
| City Area Code | 763 |
| Local Phone Number | 392-6200 |
| Security 12b Title | Common Stock, par value $0.01 per share |
| Trading Symbol | ISIG |
| Security Exchange Name | NASDAQ |
| Entity Address City Or Town | Minneapolis |
