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Summary of Significant Accounting Policies (Details) (USD $)
 3 Months Ended 12 Months Ended
Dec. 29, 2012
Sep. 29, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2011
Sep. 24, 2011
Jun. 25, 2011
Mar. 26, 2011
Dec. 29, 2012
Dec. 31, 2011
Dec. 25, 2010
Dec. 29, 2012
Non-vested restricted common stock
Dec. 31, 2011
Non-vested restricted common stock
Dec. 25, 2010
Non-vested restricted common stock
Dec. 29, 2012
Stock options
Dec. 31, 2011
Stock options
Dec. 25, 2010
Stock options
Dec. 29, 2012
Minimum
Dec. 29, 2012
Maximum
Dec. 29, 2012
Period 1
Dec. 29, 2012
Period 2
Dec. 29, 2012
Period 3
Dec. 29, 2012
Restricted stock
Dec. 31, 2011
Restricted stock
Dec. 29, 2012
Phantom stock
Dec. 31, 2011
Phantom stock
Dec. 29, 2012
Restricted stock and phantom stock
Dec. 29, 2012
Property with associated asset retirement obligation
Dec. 31, 2011
Property with associated asset retirement obligation
Mar. 14, 2013
Subsequent event
Kowon
Dec. 29, 2012
Kowon
Dec. 29, 2012
KTC
Dec. 29, 2012
Ikanos
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]                                                                  
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent                 $ 2,222,234 $ (1,121,011) $ 1,886,520                                            
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent                 144,534 (971,148) (1,243,327)                                            
Fiscal year duration                 52 weeks 53 weeks 52 weeks                                            
Kopin's ownership percentage                                                             (78.00%) (90.00%) (51.00%)
Consideration transferred                                                           3,700,000      
Inventory, Net, Items Net of Reserve Alternative [Abstract]                                                                  
Raw materials 2,540,497       9,934,724       2,540,497 9,934,724                                              
Work-in-process 1,880,202       5,220,353       1,880,202 5,220,353                                              
Finished goods 1,369,054       5,313,435       1,369,054 5,313,435                                              
Inventory 5,789,753       20,468,512       5,789,753 20,468,512                                              
Useful life of property, plant and equipment                                   3 years 10 years                            
Warranty reserves 700,000       1,300,000       700,000 1,300,000                                              
Product warranty claims and reversals                 2,200,000 1,400,000 800,000                                            
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]                                                                  
Asset retirement obligation, beginning balance       1,295,670       944,617 1,295,670 944,617                                              
Accretion                 32,360 309,119                                              
Charges                 (424,785) 0                                              
Additional liabilities incurred                 43,211 41,934                                              
Reclassified to non-current assets held for sale                 (623,979) 0                                              
Asset retirement obligation, ending balance 322,477       1,295,670       322,477 1,295,670 944,617                                            
Cumulative amortization of long-lived assets associated with ARO's 31,673,594       60,583,561       31,673,594 60,583,561                                   600,000 600,000        
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]                                                                  
Weighted-average common shares outstanding - basic (in shares) 63,836,000 63,415,000 63,078,000 64,225,000 64,065,000 64,292,000 64,529,000 64,736,000 63,617,680 64,405,776 66,019,847                                            
Stock options and non-vested restricted common stock                 0 828,436 691,654                                            
Weighted average common shares outstanding - diluted (in shares) 63,836,000 63,415,000 63,078,000 64,225,000 64,065,000 65,441,000 66,775,000 65,655,000 63,617,680 65,234,212 66,711,501                                            
Antidilutive securities excluded from computation of earnings per share                 3,266,728 2,175,859 2,773,570 2,283,048 613,934 229,159 983,680 1,561,925 2,544,411                                
Nonvested common stock awards employment obligations                                       1 year 2 years 4 years                      
Compensation awards, number of shares of stock granted                                             260,000 260,000 380,000 380,000              
Vesting period following the grant date                                                     10 days            
Threshold closing price of common stock for vesting                                                     $ 5.25            
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]                                                                  
Cumulative Translation Adjustment - Beginning Balance       1,319,870       2,440,881 1,319,870 2,440,881 554,361                                            
Unrealized Holding (Loss) Gain on Marketable Securities, Beginning Balance       2,826,154       3,797,302 2,826,154 3,797,302 5,040,629                                            
Non-Credit Related Losses on Investments - Beginning Balance       0       (252,838) 0 (252,838) (1,038,177)                                            
Accumulated Other Comprehensive Income (Loss) - Beginning Balance       4,146,024       5,985,345 4,146,024 5,985,345 4,556,813                                            
Cumulative Translation Adjustment - Ending Balance 3,542,104       1,319,870       3,542,104 1,319,870 2,440,881                                            
Unrealized Holding (Loss) Gain on Marketable Securities, Ending Balance 2,970,688       2,826,154       2,970,688 2,826,154 3,797,302                                            
Non-Credit Related Losses on Investments - Ending Balance 0       0       0 0 (252,838)                                            
Accumulated Other Comprehensive Income (Loss) - Ending Balance 6,512,792       4,146,024       6,512,792 4,146,024 5,985,345                                            
Carrying value of long-lived assets excluding assets held for sale 8,500,000               8,500,000                                                
Percentage of voting interests acquired                                                           15.00%      
Other than Temporary Impairment Losses, Investments, Portion in Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Available-for-sale Securities                 0 252,838 785,339                                            
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent                 $ 2,366,768 $ (1,839,321) $ 1,428,532