CONTRACT ASSETS AND LIABILITIES (Details Narrative) - USD ($)	3 Months Ended
Apr. 01, 2023	Mar. 26, 2022
Contract Assets And Liabilities
Change in Net contract assets	$ 813,473
Contract with customer, liability, revenue recognized	500,000	$ 2,900,000
Revenue, remaining performance obligation, amount	$ 17,500,000

Contract with customer assets liability cumulative catchup adjustment to revenue modification of contract.

No definition available.

Name:	KOPN_ContractWithCustomerAssetsLiabilityCumulativeCatchUpAdjustmentToRevenueModificationOfContract
Namespace Prefix:	KOPN_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- References

No definition available.

+ Details

Name:	KOPN_DisclosureContractAssetsAndLiabilitiesAbstract
Namespace Prefix:	KOPN_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-8

+ Details

Name:	us-gaap_ContractWithCustomerLiabilityRevenueRecognized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (a)
-SubTopic 10
-Topic 606
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-13

+ Details

Name:	us-gaap_RevenueRemainingPerformanceObligation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant