| Cover | Nov. 22, 2024 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Nov. 22, 2024 |
| Entity File Number | 0-13257 |
| Entity Registrant Name | NORTECH SYSTEMS INCORPORATED |
| Entity Central Index Key | 0000722313 |
| Entity Tax Identification Number | 41-1681094 |
| Entity Incorporation, State or Country Code | MN |
| Entity Address, Address Line One | 7550 Meridian Circle N |
| Entity Address, City or Town | Maple Grove |
| Entity Address, State or Province | MN |
| Entity Address, Postal Zip Code | 55369 |
| City Area Code | (952) |
| Local Phone Number | 345-2244 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, par value $.01 per share |
| Trading Symbol | NSYS |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
