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Summary of Significant Accounting Policies (Details) - USD ($)
 3 Months Ended 12 Months Ended
Dec. 29, 2018
Sep. 29, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 30, 2017
Sep. 30, 2017
Jul. 01, 2017
Apr. 01, 2017
Dec. 29, 2018
Dec. 30, 2017
Dec. 31, 2016
Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]                        
Net loss                 $ (34,482,492) $ (25,380,115) $ (23,031,145)  
Net Cash Provided by (Used in) Operating Activities                 (28,103,782) (25,912,698) (26,174,695)  
Revenue, Remaining Performance Obligation, Amount $ 8,000,000.0               8,000,000.0      
Revenues (7,741,000) $ (5,126,000) $ (5,944,000) $ (5,654,000) $ (11,397,000) $ (6,139,000) $ (5,927,000) $ (4,378,000) (24,465,005) (27,841,490) (22,642,566)  
Contract with Customer, Asset, Net 3,089,663       704,863       $ 3,089,663 704,863   $ 3,555,137
Product Warranty Term                 12 months      
Inventory, Net, Items Net of Reserve Alternative [Abstract]                        
Raw materials 2,548,139       2,070,153       $ 2,548,139 2,070,153    
Work-in-process 1,526,552       1,829,805       1,526,552 1,829,805    
Finished goods 722,547       1,180,839       722,547 1,180,839    
Inventory (4,797,238)       (5,080,797)       (4,797,238) (5,080,797)   (3,998,168)
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]                        
Asset retirement obligation, beginning balance       269,877       246,922 269,877 246,922    
Additional liabilities incurred                 (15,779) 22,955    
Asset retirement obligation, ending balance 254,098       269,877       254,098 269,877 246,922  
Impairment of Long-term Assets [Abstract]                        
Other assets 1,649,401       3,842,068       1,649,401 3,842,068   4,242,068
Total contract liabilities and billings in excess of revenue earned         1,555,883         1,555,883    
Contract with Customer, Liability                       (664,146)
Accumulated deficit (271,730,661)       (240,256,502)       (271,730,661) (240,256,502)   (237,197,119)
Research and development and other revenues                 5,253,890 2,946,685 1,527,441  
Cost of product revenues                 15,831,441 18,118,418 17,814,271  
Net Income (Loss) Attributable to Parent $ (9,966,000) $ (9,791,000) $ (9,241,000) $ (5,536,000) $ (1,803,000) $ (8,247,000) $ (7,332,000) $ (7,858,000) $ (34,533,542) $ (25,240,482) $ (23,568,717)  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period 12 months               12 months      
Minimum                        
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]                        
Operating Lease, Right-of-Use Asset $ 3,500,000               $ 3,500,000      
Property, Plant and Equipment [Abstract]                        
Useful life of property, plant and equipment                 3 years      
Impairment of Long-term Assets [Abstract]                        
Operating Lease, Liability 3,500,000               $ 3,500,000      
Maximum                        
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]                        
Operating Lease, Right-of-Use Asset 4,000,000.0               $ 4,000,000.0      
Property, Plant and Equipment [Abstract]                        
Useful life of property, plant and equipment                 10 years      
Impairment of Long-term Assets [Abstract]                        
Operating Lease, Liability $ 4,000,000.0               $ 4,000,000.0      
Restricted stock                        
Stock-based Compensation [Abstract]                        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period                 1,549,000 1,152,000 1,663,000  
eMDT                        
Principles of Consolidations [Abstract]                        
Kopin's ownership percentage 80.00%               80.00%      
Share-based Compensation Award, Tranche One [Member]                        
Stock-based Compensation [Abstract]                        
Nonvested common stock awards employment obligations                 1 year      
Share-based Compensation Award, Tranche One [Member] | Restricted stock                        
Stock-based Compensation [Abstract]                        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period                 640,000      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period                 20 days      
Share-based Compensation Award, Tranche Two [Member]                        
Stock-based Compensation [Abstract]                        
Nonvested common stock awards employment obligations                 2 years      
Share-based Compensation Award, Tranche Two [Member] | Restricted stock                        
Stock-based Compensation [Abstract]                        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period                 150,000      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period                 20 days      
Share-based Compensation Award, Tranche Three [Member]                        
Stock-based Compensation [Abstract]                        
Nonvested common stock awards employment obligations                 4 years      
Share-based Compensation Award, Tranche Three [Member] | Restricted stock                        
Stock-based Compensation [Abstract]                        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period                 150,000      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period                 20 days      
Unvested Restricted Stock Awards                        
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]                        
Antidilutive securities excluded from computation of earnings per share                 2,213,249 2,629,274 3,007,674  
Product [Member]                        
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]                        
Revenues                 $ (19,211,115) $ (24,894,805) $ (21,115,125)  
Impairment of Long-term Assets [Abstract]                        
Cost of product revenues                 15,831,441      
Net Income (Loss) Attributable to Parent                 (34,533,542)      
Extended Warranties [Member]                        
Impairment of Long-term Assets [Abstract]                        
Contract with Customer, Liability $ (400,000)               $ (400,000)      
Transferred over Time [Member]                        
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]                        
Revenue, Percentage from Products and Services Transferred to Customers                 40.00% 9.00% 5.00%  
Transferred at Point in Time [Member]                        
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]                        
Revenue, Percentage from Products and Services Transferred to Customers                 60.00% 91.00% 95.00%  
Accounting Standards Update 2014-09 [Member]                        
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]                        
Contract with Customer, Asset, Net                       2,850,274
Inventory, Net, Items Net of Reserve Alternative [Abstract]                        
Inventory                       (1,082,629)
Impairment of Long-term Assets [Abstract]                        
Other assets                       400,000
Contract with Customer, Liability                       (891,737)
Accumulated deficit                       $ 3,059,383
Difference between Revenue Guidance in Effect before and after Topic 606 [Member]                        
Impairment of Long-term Assets [Abstract]                        
Cost of product revenues                 $ 346,176      
Difference between Revenue Guidance in Effect before and after Topic 606 [Member] | Product [Member]                        
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]                        
Revenues                 (515,786)      
Impairment of Long-term Assets [Abstract]                        
Cost of product revenues                 977,902      
Net Income (Loss) Attributable to Parent                 115,940      
Calculated under Revenue Guidance in Effect before Topic 606 [Member]                        
Impairment of Long-term Assets [Abstract]                        
Cost of product revenues                 5,600,066      
Calculated under Revenue Guidance in Effect before Topic 606 [Member] | Product [Member]                        
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]                        
Revenues                 (19,726,901)      
Impairment of Long-term Assets [Abstract]                        
Cost of product revenues                 16,809,343      
Net Income (Loss) Attributable to Parent                 $ (34,649,482)