XML 44 R29.htm IDEA: XBRL DOCUMENT
v3.20.2

RELATED PARTY TRANSACTIONS (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2020
RELATED PARTY TRANSACTIONS |
Schedule of related party transaction expenses recorded during the respective periods | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the Three Months Ended |  | For the Nine Months Ended
​ | ​ | September 30, |  | September 30,
​ |  | 2020 |  | 2019 |  | 2020 |  | 2019
Research and development | ​ | $ | 405,000 | ​ | $ | 77,000 | ​ | $ | 864,000 | ​ | $ | 306,000
Total | ​ | $ | 405,000 |  | $ | 77,000 | ​ | $ | 864,000 |  | $ | 306,000
Sponsored Research Agreement with The Baylor College of Medicine ("BCM") |
RELATED PARTY TRANSACTIONS |
Schedule of related party transaction expenses recorded during the respective periods | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | For the Three Months Ended |  | For the Nine Months Ended
​ | ​ | September 30, | ​ | September 30,
​ |  | 2020 |  | 2019 |  | 2020 |  | 2019
Research and development | ​ | $ | 11,000 | ​ | $ | 15,000 | ​ | $ | 68,000 | ​ | $ | 30,000
Total | ​ | $ | 11,000 | ​ | $ | 15,000 | ​ | $ | 68,000 | ​ | $ | 30,000
Clinical Supply Agreement with BCM [Member] |
RELATED PARTY TRANSACTIONS |
Schedule of related party transaction expenses recorded during the respective periods | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | For the Three Months Ended |  | For the Nine Months Ended
​ | ​ | September 30, | ​ | September 30,
​ |  | 2020 |  | 2019 |  | 2020 |  | 2019
Research and development | ​ | $ | — | ​ | $ | — | ​ | $ | 200,000 | ​ | $ | —
Total | ​ | $ | — | ​ | $ | — | ​ | $ | 200,000 | ​ | $ | —
Workforce Grant Agreement with BCM |
RELATED PARTY TRANSACTIONS |
Schedule of related party transaction expenses recorded during the respective periods | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | For the Three Months Ended |  | For the Nine Months Ended
​ | ​ | September 30, | ​ | September 30,
​ |  | 2020 |  | 2019 |  | 2020 |  | 2019
Research and development | ​ | $ | 130,000 | ​ | $ | — | ​ | $ | 278,000 | ​ | $ | —
Total | ​ | $ | 130,000 | ​ | $ | — | ​ | $ | 278,000 | ​ | $ | —
Clinical Trial Agreement with BCM |
RELATED PARTY TRANSACTIONS |
Schedule of related party transaction expenses recorded during the respective periods | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the Three Months Ended | ​ | For the Nine Months Ended
​ | ​ | September 30, | ​ | September 30,
​ |  | 2020 |  | 2019 |  | 2020 |  | 2019
Research and development | ​ | $ | 213,000 | ​ | $ | — | ​ | $ | 213,000 | ​ | $ | —
Total | ​ | $ | 213,000 |  | $ | — | ​ | $ | 213,000 |  | $ | —
Purchases from Bio-Techne Corporation |
RELATED PARTY TRANSACTIONS |
Schedule of related party transaction expenses recorded during the respective periods | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | For the Three Months Ended |  | For the Nine Months Ended
​ | ​ | September 30, | ​ | September 30,
​ |  | 2020 |  | 2019 |  | 2020 |  | 2019
Research and development | ​ | $ | 51,000 | ​ | $ | 4,000 | ​ | $ | 105,000 | ​ | $ | 43,000
Total | ​ | $ | 51,000 | ​ | $ | 4,000 | ​ | $ | 105,000 | ​ | $ | 43,000
Consulting Agreement with Dr. Juan Vera |
RELATED PARTY TRANSACTIONS |
Schedule of related party transaction expenses recorded during the respective periods | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the Three Months Ended | ​ | For the Nine Months Ended
​ | ​ | September 30, | ​ | September 30,
​ |  | 2020 |  | 2019 |  | 2020 |  | 2019
Research and development | ​ | $ | — | ​ | $ | 58,000 | ​ | $ | — | ​ | $ | 233,000
Total | ​ | $ | — | ​ | $ | 58,000 |  | $ | — |  | $ | 233,000

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_RelatedPartyTransactionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of related party transactions. Examples of related party transactions include, but are not limited to, transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners and (d) affiliates. + References No definition available. + Details
Name: | us-gaap_ScheduleOfRelatedPartyTransactionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=mrkr_SponsoredResearchAgreementWithBaylorCollegeOfMedicineMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=mrkr_ClinicalSupplyAgreementWithBcmMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=mrkr_WorkforceGrantAgreementWithBaylorCollegeOfMedicineMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=mrkr_ClinicalTrialAgreementWithBaylorCollegeOfMedicineMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=mrkr_PurchasesFromBioTechneCorporationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=mrkr_ConsultingAgreementWithDr.JuanVeraMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |