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Summary of Significant Accounting Policies (Details) (USD $)
 3 Months Ended 12 Months Ended 12 Months Ended 3 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended
Dec. 28, 2013
Sep. 28, 2013
Jun. 29, 2013
Mar. 30, 2013
Dec. 29, 2012
Sep. 29, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 28, 2013
Dec. 29, 2012
Dec. 31, 2011
Dec. 25, 2010
Dec. 28, 2013
Non-vested restricted common stock
Dec. 29, 2012
Non-vested restricted common stock
Dec. 31, 2011
Non-vested restricted common stock
Dec. 28, 2013
Stock options
Dec. 29, 2012
Stock options
Dec. 31, 2011
Stock options
Dec. 28, 2013
Minimum
Dec. 28, 2013
Maximum
Dec. 28, 2013
Period 1
Dec. 28, 2013
Period 2
Dec. 28, 2013
Period 3
Dec. 28, 2013
Restricted stock
display_units
Dec. 29, 2012
Restricted stock
Dec. 28, 2013
Phantom stock
Dec. 29, 2012
Phantom stock
Dec. 28, 2013
Restricted stock and phantom stock
Dec. 28, 2013
Restricted stock and phantom stock
Period 1
Dec. 28, 2013
Restricted stock and phantom stock
Period 2
Dec. 28, 2013
Restricted stock and phantom stock
Period 3
Mar. 14, 2013
Subsequent event
Kowon
Dec. 28, 2013
Kowon
Dec. 29, 2012
Kowon
Dec. 28, 2013
Ikanos
Dec. 28, 2013
eMDT
Dec. 28, 2013
Accumulated Net Unrealized Investment Gain (Loss)
Dec. 28, 2013
Business Acquisition One
Dec. 28, 2013
Accumulated Other Comprehensive Income (Loss)
Dec. 28, 2013
Accumulated Translation Adjustment
Dec. 29, 2012
Scenario, Adjustment
Dec. 31, 2011
Scenario, Adjustment
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]                                                                                    
Finite-Lived Intangible Asset, Useful Life                                     3 years 7 years                                            
Fiscal Year Duration                 52 weeks 52 53                                                              
Kopin's ownership percentage                                                                 93.00% 78.00% (58.00%) 51.00%            
Consideration transferred                                                               $ 3,700,000                    
Percentage of voting interests acquired                                                               15.00%                    
Inventory, Net, Items Net of Reserve Alternative [Abstract]                                                                                    
Raw materials 1,441,569       2,540,497       1,441,569 2,540,497                                                                
Work-in-process 1,003,540       1,880,202       1,003,540 1,880,202                                                                
Finished goods 632,946       1,369,054       632,946 1,369,054                                                                
Inventory 3,078,055       5,789,753       3,078,055 5,789,753                                                                
Useful life of property, plant and equipment                                     3 years 10 years                                            
Warranty reserves 700,000       0       700,000 0                                                                
Product warranty claims and reversals                 800,000 2,200,000 1,400,000                                                              
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]                                                                                    
Asset retirement obligation, beginning balance       322,477       1,295,670 322,477 1,295,670                                                                
Accretion                 0 32,360                                                                
Charges                 0 (424,785)                                                                
Additional liabilities incurred                 6,958 43,211                                                                
Reclassified to non-current assets held for sale                 0 (623,979)                                                                
Asset retirement obligation, ending balance 329,435       322,477       329,435 322,477 1,295,670                                                              
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]                                                                                    
Weighted-average common shares outstanding - basic (in shares) 61,529,000 63,542,000 62,492,000 63,936,000 63,836,000 63,415,000 63,078,000 64,225,000 62,347,852 63,617,680 64,405,776                                                              
Stock options and non-vested restricted common stock                 0 0 828,436                                                              
Weighted average common shares outstanding - diluted (in shares) 61,529,000 63,542,000 62,492,000 63,936,000 63,836,000 63,415,000 63,078,000 64,225,000 62,347,852 63,617,680 65,234,212                                                              
Antidilutive securities excluded from computation of earnings per share                 3,582,998 3,266,728 2,175,859   3,024,148 2,283,048 613,934 558,850 983,680 1,561,925                                                
Nonvested common stock awards employment obligations                                         1 year 2 years 4 years                                      
Compensation awards, number of shares of stock granted                 150,000                             260,000 260,000 380,000 380,000                              
Vesting period following the grant date                                                       10 days                            
Threshold closing price of common stock for vesting                                                         $ 6.00 $ 7.00 $ 5.25                      
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures                 300,000                                                                  
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]                                                                                    
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax 2,524,701       3,542,104       2,524,701 3,542,104 1,319,870 2,440,881                                                       200,000    
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent                 (1,017,403) 2,222,234 (1,121,011)                                                              
Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax 917,296       2,970,688       917,296 2,970,688 2,826,154 3,797,302                                                            
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent                 (2,053,392) 144,534 (971,148)                                                              
Accumulated Other Comprehensive Income (Loss), Other than Temporary Impairment, Not Credit Loss, Net of Tax, Available-for-sale, Debt Securities 0       0       0 0 0 252,838                                                            
Other than Temporary Impairment Losses, Investments, Portion in Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Available-for-sale Securities                 0 0 (252,838)                                                              
Accumulated Other Comprehensive Income (Loss), Net of Tax 3,441,997       6,512,792       3,441,997 6,512,792 4,146,024 5,985,345                                                            
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent                 (3,070,795) 2,366,768 (1,839,321)                                                              
Carrying value of long-lived assets excluding assets held for sale 6,000,000               6,000,000                                                                  
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax                 (116,134) 730,967 (260,502)                                                   (100,000)          
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, before Tax                 (1,900,000)                                                                  
Gain (Loss) on Sale of Business                 33,452,176                                                         (1,600,000)        
Stockholders' Equity Attributable to Noncontrolling Interest 9,939       6,352,230       9,939 6,352,230                                                         355,300      
Comprehensive Income (Loss), Net of Tax, Attributable to Parent                 $ (6,555,083) $ (15,995,162) $ 1,240,043                                                           $ (0.6) $ (0.1)
Market Condition                                               50,000