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BASIS OF PRESENTATION (Details) (USD $) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 28, 2013 | Sep. 29, 2012 | Sep. 28, 2013 | Sep. 29, 2012 | Dec. 29, 2012
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |  |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Purchase of Interest by Parent | $ 3,700,000 |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Additional Interest Issued to Parent | 0.15 |  |  |  |
Gain (Loss) on Sale of Business |  |  | 33,452,176 | 0 |
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax |  |  | (3,217,344) |  |
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, before Tax | 126,461 | (150,520) | (1,438,709) | 1,220,149 |
Stockholders' Equity Attributable to Noncontrolling Interest | 183,283 |  | 183,283 |  | 6,352,230
Kowon |  |  |  |  |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |  |  |  |  |
Kopin's ownership percentage | 93.00% |  | 93.00% |  |
Ikanos |  |  |  |  |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |  |  |  |  |
Kopin's ownership percentage | 51.00% |  | 51.00% |  |
eMDT |  |  |  |  |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |  |  |  |  |
Kopin's ownership percentage | 51.00% |  | 51.00% |  |
Accumulated Translation Adjustment |  |  |  |  |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |  |  |  |  |
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax | 100,000 |  | 100,000 |  |
Accumulated Net Unrealized Investment Gain (Loss) |  |  |  |  |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |  |  |  |  |
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax | (1,400,000) |  |  |  |
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, before Tax | (1,900,000) |  |  |  |
Business Acquisition One |  |  |  |  |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |  |  |  |  |
Gain (Loss) on Sale of Business | (1,600,000) |  |  |  |
Accumulated Other Comprehensive Income |  |  |  |  |
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items] |  |  |  |  |
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax |  |  | (3,231,180) |  |
Stockholders' Equity Attributable to Noncontrolling Interest | $ 355,300 |  | $ 355,300 |  |

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