Cover - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Feb. 28, 2026 |
Jun. 30, 2025 |
|
| Cover [Abstract] | |||
| Document Type | 10-K/A | ||
| Amendment Flag | true | ||
| Amendment Description | This Amendment No. 1 (this “Amendment”) amends the Annual Report on Form 10-K of Nortech Systems Incorporated for the year ended December 31, 2025, originally filed with the Securities and Exchange Commission on March 26, 2026 (the “Original Form 10-K”). This Amendment is being filed solely to include conformed signatures on Exhibits 31.1, 31.2 and 32.1 that were inadvertently omitted from the Original Form 10-K. No other changes have been made to the Original Form 10-K.In connection with this Amendment, the Company is including updated certifications of its Chief Executive Officer and Chief Financial Officer pursuant to Section 302 and Section 906 of the Sarbanes-Oxley Act of 2002 in compliance with Rule 12b-15 under the Securities Exchange Act of 1934, as amended.This Amendment does not reflect any changes to the consolidated financial statements or any other disclosures contained in the Original Form 10-K and does not update any information to reflect events occurring after the filing of the Original Form 10-K. Except as specifically noted above, this Amendment continues to speak as of the date of the Original Form 10-K. | ||
| Document Annual Report | true | ||
| Document Transition Report | false | ||
| Document Period End Date | Dec. 31, 2025 | ||
| Document Fiscal Period Focus | FY | ||
| Document Fiscal Year Focus | 2025 | ||
| Current Fiscal Year End Date | --12-31 | ||
| 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, Address Line Two | #150 | ||
| 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 | ||
| Title of 12(b) Security | Common Stock, par value $.01 per share | ||
| Trading Symbol | NSYS | ||
| Security Exchange Name | NASDAQ | ||
| Entity Well-known Seasoned Issuer | No | ||
| Entity Voluntary Filers | No | ||
| Entity Current Reporting Status | Yes | ||
| Entity Interactive Data Current | Yes | ||
| Entity Filer Category | Non-accelerated Filer | ||
| Entity Small Business | true | ||
| Entity Emerging Growth Company | false | ||
| Entity Shell Company | false | ||
| Entity Public Float | $ 11,809,220 | ||
| Entity Common Stock, Shares Outstanding | 2,786,134 | ||
| Documents Incorporated by Reference [Text Block] | Portions of the registrant’s Proxy Statement for Registrant’s Annual Meeting of Shareholders to be held on May 13, 2026 have been incorporated by reference into Part III of this Form 10-K. The Proxy Statement is expected to be filed with the Securities and Exchange Commission (the SEC) within 120 days after December 31, 2025, the end of our fiscal year. | ||
| ICFR Auditor Attestation Flag | false | ||
| Document Financial Statement Error Correction [Flag] | false | ||
| Auditor Firm ID | 23 | ||
| Auditor Opinion [Text Block] | We have audited the accompanying consolidated balance sheets of Nortech Systems Incorporated and Subsidiaries (the “Company”) as of December 31, 2025 and 2024, the related consolidated statements of operations and comprehensive income (loss), shareholders’ equity, and cash flows for the years then ended, and the related notes (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the consolidated financial position of the Company as of December 31, 2025 and 2024, and the consolidated results of its operations and its cash flows for the years then ended, in conformity with accounting principles generally accepted in the United States of America. | ||
| Auditor Name | Baker Tilly US, LLP | ||
| Auditor Location | Minneapolis, Minnesota |