XML 42 R28.htm IDEA: XBRL DOCUMENT
v3.19.1

Contract Assets and Liabilities (Tables) | 12 Months Ended
--- | ---
Dec. 29, 2018
Contract Assets and Liabilities [Abstract] |
Contract with Customer, Asset and Liability [Table Text Block] | Net contract assets (liabilities) consisted of the following:
| December 29, 2018 |  | December 31, 2017 |  | $ Change |  | % Change
Contract assets and unbilled receivables | $ | 3,089,663 |  |  | $ | 3,555,137 |  |  | $ | (465,474 | ) |  | (13 | )%
Contract liabilities and billings in excess of revenue earned | (388,933 | ) |  | (664,146 | ) |  | 275,213 |  |  | (41 | )%
Contract liabilities, noncurrent | (17,294 | ) |  | (374,171 | ) |  | 356,877 |  |  | (95 | )%
Net contract assets | $ | 2,683,436 |  |  | $ | 2,516,820 |  |  | $ | 166,616 |  |  | 7 | %

X
- Definition Contract Assets and Liabilities [Abstract] + References No definition available. + Details
Name: | kopn_ContractAssetsandLiabilitiesAbstract
Namespace Prefix: | kopn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of contract balances and changes in contract balances. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130551-203045 + Details
Name: | us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration