XML 47 R37.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Note H - Fair Value of Financial Instruments - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Fair Value, Recurring [Member] |  |
Total assets | $ 37,295,000 | $ 15,422,000
Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member] |  |
Total assets | 7,171,000 | 4,997,000
Fair Value, Recurring [Member] | Certificates of Deposit [Member] |  |
Total assets | 20,475,000 | 490,000
Fair Value, Recurring [Member] | US Treasury Securities [Member] |  |
Total assets | 9,649,000 | 9,935,000
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Total assets | 30,124,000 | 10,425,000
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | US Government Agencies Debt Securities [Member] |  |
Total assets | 0 | 0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Certificates of Deposit [Member] |  |
Total assets | 20,475,000 | 490,000
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | US Treasury Securities [Member] |  |
Total assets | 9,649,000 | 9,935,000
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Total assets | 7,171,000 | 4,997,000
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | US Government Agencies Debt Securities [Member] |  |
Total assets | 7,171,000 | 4,997,000
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Certificates of Deposit [Member] |  |
Total assets | 0 | 0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | US Treasury Securities [Member] |  |
Total assets | 0 | 0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Total assets | 0 | 0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | US Government Agencies Debt Securities [Member] |  |
Total assets | 0 | 0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Certificates of Deposit [Member] |  |
Total assets | 0 | 0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | US Treasury Securities [Member] |  |
Total assets | 0 | 0
Deerfield Warrant Liability [Member] |  |
Financial liabilities measured at fair value on recurring basis | 30,000 | 288,000
Deerfield Warrant Liability [Member] | Fair Value, Recurring [Member] |  |
Financial liabilities measured at fair value on recurring basis | 30,000 | 288,000
Deerfield Warrant Liability [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Financial liabilities measured at fair value on recurring basis | 0 | 0
Deerfield Warrant Liability [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Financial liabilities measured at fair value on recurring basis | 0 | 0
Deerfield Warrant Liability [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Financial liabilities measured at fair value on recurring basis | 30,000 | 288,000
Embedded Put Option [Member] |  |
Financial liabilities measured at fair value on recurring basis | 4,000 | 18,000
Embedded Put Option [Member] | Fair Value, Recurring [Member] |  |
Financial liabilities measured at fair value on recurring basis | 4,000 | 18,000
Embedded Put Option [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Financial liabilities measured at fair value on recurring basis | 0 | 0
Embedded Put Option [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Financial liabilities measured at fair value on recurring basis | 0 | 0
Embedded Put Option [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Financial liabilities measured at fair value on recurring basis | 4,000 | 18,000
KVK Warrant Liability [Member] | Fair Value, Recurring [Member] |  |
Financial liabilities measured at fair value on recurring basis | 1,000 | 24,000
KVK Warrant Liability [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Financial liabilities measured at fair value on recurring basis | 0 | 0
KVK Warrant Liability [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Financial liabilities measured at fair value on recurring basis | 1,000 | 24,000
KVK Warrant Liability [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Financial liabilities measured at fair value on recurring basis | 0 | 0
Optional Exchange Principal Amount Conversion Feature [Member[ | Fair Value, Recurring [Member] |  |
Financial liabilities measured at fair value on recurring basis | 35,000 | 330,000
Optional Exchange Principal Amount Conversion Feature [Member[ | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Financial liabilities measured at fair value on recurring basis | 0 | 0
Optional Exchange Principal Amount Conversion Feature [Member[ | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Financial liabilities measured at fair value on recurring basis | 1,000 | 24,000
Optional Exchange Principal Amount Conversion Feature [Member[ | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Financial liabilities measured at fair value on recurring basis | $ 34,000 | $ 306,000

X
- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
Name: | us-gaap_AssetsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value of financial and nonfinancial obligations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
Name: | us-gaap_LiabilitiesFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_USGovernmentAgenciesDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_CertificatesOfDepositMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_USTreasurySecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByLiabilityClassAxis=kmph_DeerfieldWarrantLiabilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByLiabilityClassAxis=kmph_EmbeddedPutOptionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByLiabilityClassAxis=kmph_KVKWarrantLiabilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByLiabilityClassAxis=kmph_OptionalExchangePrincipalAmountConversionFeatureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |