| Cover - shares | 3 Months Ended | |
| Apr. 01, 2023 | May 05, 2023 | |
| Cover [Abstract] | ||
| Document Type | 10-Q/A | |
| Amendment Flag | true | |
| Amendment Description | This amendment to Kopin Corporation’s Quarterly Report on Form 10-Q for the quarterly period ended April 1, 2023 filed with the Securities and Exchange Commission on May 11, 2023 is made solely to correct the amount of shares of the registrant’s Common Stock, par value $.01 per share, that were issued and outstanding as of May 5, 2023. No other changes to the disclosure in the original Form 10-Q are made by this Form 10-Q/A | |
| Document Quarterly Report | true | |
| Document Transition Report | false | |
| Document Period End Date | Apr. 01, 2023 | |
| Document Fiscal Period Focus | Q1 | |
| Document Fiscal Year Focus | 2023 | |
| Current Fiscal Year End Date | --12-30 | |
| Entity File Number | 000-19882 | |
| Entity Registrant Name | KOPIN CORPORATION | |
| Entity Central Index Key | 0000771266 | |
| Entity Tax Identification Number | 04-2833935 | |
| Entity Incorporation, State or Country Code | DE | |
| Entity Address, Address Line One | 125 North Drive | |
| Entity Address, City or Town | Westborough | |
| Entity Address, State or Province | MA | |
| Entity Address, Postal Zip Code | 01581-3335 | |
| City Area Code | (508) | |
| Local Phone Number | 870-5959 | |
| Title of 12(b) Security | Common Stock, par value $0.01 | |
| Trading Symbol | KOPN | |
| Security Exchange Name | NASDAQ | |
| 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 Common Stock, Shares Outstanding | 111,431,967 |
