| Document and Entity Information | Jul. 07, 2021 |
| Document and Entity Information [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Jul. 7, 2021 |
| Entity File Number | 001-34376 |
| Entity Registrant Name | IEC ELECTRONICS CORP. |
| Entity Incorporation, State or Country Code | DE |
| Entity Tax Identification Number | 13-3458955 |
| Entity Address, Address Line One | 105 Norton Street |
| Entity Address, City or Town | Newark |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 14513 |
| City Area Code | 315 |
| Local Phone Number | 331-7742 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, $0.01 par value |
| Trading Symbol | IEC |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0000049728 |
| Amendment Flag | false |
