XML 51 R39.htm IDEA: XBRL DOCUMENT
v3.23.1

Basis of Presentation (Details Textual) - USD ($) $ in Millions |  | 12 Months Ended |
--- | --- | --- | ---
Nov. 08, 2022 | Dec. 31, 2022 | Jan. 31, 2023
Basis of Presentation [Line Items] |  |  |
Cash in operations |  |  | $ 0.1
Working Capital Deficit |  | $ 7.8 |
Unrestricted cash available to fund future operations |  | $ 0.9 |
Common Stock |  |  |
Basis of Presentation [Line Items] |  |  |
Reverse stock split, ratio | 20-for-1 |  |

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

X
- Definition The amount of cash and cash equivalents with respect to unrestricted balances available to future operations. + References No definition available. + Details
Name: | kern_UnrestrictedCashAndCashEquivalentsAvailableToFutureOperations
Namespace Prefix: | kern_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of working capital deficit + References No definition available. + Details
Name: | kern_WorkingCapitalDeficit
Namespace Prefix: | kern_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section 45 -Paragraph 20 -URI https://asc.fasb.org/extlink&oid=118262064&loc=SL116631418-115840 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 55 -Paragraph 10 -URI https://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section 45 -Paragraph 21 -URI https://asc.fasb.org/extlink&oid=118262064&loc=SL116631419-115840 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(1)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_Cash
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Description of the reverse stock split arrangement. Also provide the retroactive effect given by the reverse split that occurs after the balance sheet date but before the release of financial statements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB Topic 4.C) -URI https://asc.fasb.org/extlink&oid=120397183&loc=d3e187143-122770 + Details
Name: | us-gaap_StockholdersEquityReverseStockSplit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_CommonStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |