XML 64 R40.htm IDEA: XBRL DOCUMENT
v3.25.1

Allowance for Credit Losses (Tables) | 12 Months Ended
--- | ---
Dec. 28, 2024
Receivables [Abstract] |
Schedule of Valuation and Qualifying Accounts | The following table sets forth activity in Kopin’s allowance for credit losses: Schedule of Valuation and Qualifying Accounts
Fiscal year ended: |  | Balance at Beginning of Year |  |  | Additions Charged to Income |  |  | Deductions from Reserve |  |  | Balance at End of Year |
December 31, 2022 |  | $ | 150,000 |  |  | $ | 322,000 |  |  | $ | (169,000 | ) |  | $ | 303,000 |
December 30, 2023 |  |  | 303,000 |  |  |  | 789,000 |  |  |  | (67,000 | ) |  |  | 1,025,000 |
December 28, 2024 |  | $ | 1,025,000 |  |  | $ | 85,000 |  |  | $ | (35,000 | ) |  | $ | 1,075,000 |

X
- Definition Schedule of valuation and qualifying accounts [Table Text Block] + References No definition available. + Details
Name: | KOPN_ScheduleOfValuationAndQualifyingAccountsTableTextBlock
Namespace Prefix: | KOPN_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_ReceivablesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration