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SEGMENTS AND DISAGGREGATION OF REVENUE (Details Narrative)	3 Months Ended
	Mar. 28, 2020
Segment Reporting [Abstract]
Reportable segments	one reportable segment

X

- Definition

Number of reportable segments.

+ References

No definition available.

+ Details

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

X

- References

No definition available.

+ Details

Name:	us-gaap_SegmentReportingAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration