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Summary of Significant Accounting Policies (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 28, 2019	Sep. 28, 2019	Jun. 29, 2019	Mar. 30, 2019	Dec. 29, 2018	Sep. 29, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017	Dec. 30, 2018	Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Net loss									$ (29,374,222)	$ (34,482,492)	$ (25,380,115)
Net Cash Provided by (Used in) Operating Activities									(21,026,854)	(28,103,782)	(25,912,698)
Revenue, Remaining Performance Obligation, Amount	$ 9,300,000								9,300,000
Revenues	(8,727,000)	$ (6,139,000)	$ (9,110,000)	$ (5,543,000)	$ (7,741,000)	$ (5,126,000)	$ (5,944,000)	$ (5,654,000)	(29,518,809)	(24,465,005)	(27,841,490)
Contract with Customer, Asset, after Allowance for Credit Loss	921,082								921,082				$ 3,089,663
Operating Lease, Right-of-Use Asset	2,753,963				0				$ 2,753,963	0
Product Warranty Term									12 months
Inventory, Net, Items Net of Reserve Alternative [Abstract]
Raw materials	2,630,156				2,548,139				$ 2,630,156	2,548,139
Work-in-process	711,475				1,526,552				711,475	1,526,552
Finished goods	427,065				722,547				427,065	722,547
Inventory	(3,768,696)				(4,797,238)				(3,768,696)	(4,797,238)
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Asset retirement obligation, beginning balance				254,098				269,877	254,098	269,877
Additional liabilities incurred									7,785	(15,779)
Asset retirement obligation, ending balance	261,883				254,098				261,883	254,098	269,877
Impairment of Long-term Assets [Abstract]
Other assets	517,411				1,361,375				517,411	1,361,375
Accumulated deficit	(301,236,913)				(271,730,661)				(301,236,913)	(271,730,661)
Research and development and other revenues									9,234,921	5,253,890	2,946,685
Cost of product revenues									20,901,538	15,831,441	18,118,418
Net Income (Loss) Attributable to Parent	$ (7,290,000)	$ (6,625,000)	$ (4,260,000)	$ (11,331,000)	(9,966,000)	$ (9,791,000)	$ (9,241,000)	$ (5,536,000)	$ (29,506,252)	(34,533,542)	$ (25,240,482)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	12 months								12 months
Operating Lease, Liability, Current	$ 1,041,695				$ 0				$ 1,041,695	$ 0		$ 1,000,000.0
Minimum
Property, Plant and Equipment [Abstract]
Useful life of property, plant and equipment									3 years
Maximum
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Operating Lease, Right-of-Use Asset												3,700,000
Property, Plant and Equipment [Abstract]
Useful life of property, plant and equipment									10 years
Impairment of Long-term Assets [Abstract]
Operating Lease, Liability												$ 3,800,000
Restricted stock
Stock-based Compensation [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period									645,000	1,549,000	1,152,000
eMDT
Principles of Consolidations [Abstract]
Kopin's ownership percentage	80.00%								80.00%
Share-based Payment Arrangement, Tranche One [Member]
Stock-based Compensation [Abstract]
Nonvested common stock awards employment obligations									1 year
Share-based Payment Arrangement, 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 Payment Arrangement, Tranche Two [Member]
Stock-based Compensation [Abstract]
Nonvested common stock awards employment obligations									2 years
Share-based Payment Arrangement, 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 Payment Arrangement, Tranche Three [Member]
Stock-based Compensation [Abstract]
Nonvested common stock awards employment obligations									4 years
Share-based Payment Arrangement, 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									1,863,124	2,213,249	2,629,274
Product [Member]
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Revenues									$ (20,283,888)	$ (19,211,115)	$ (24,894,805)
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	$ (39,000)								$ (39,000)
Transferred over Time [Member]
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Revenue, Percentage from Products and Services Transferred to Customers									64.00%	40.00%	9.00%
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									36.00%	60.00%	91.00%
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)

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