XML 31 R18.htm IDEA: XBRL DOCUMENT
v3.23.1

Note 2 - Basis of Presentation, Principles of Consolidation, and Significant Accounting Policies (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2022
Notes Tables |
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block] |
|  | December 31, |
|  | 2022 |  |  | 2021 |
Prepaid sponsored research |  | $ | 1,028 |  |  | $ | 474 |
Vendor prepayments and deposits |  |  | 801 |  |  |  | 486 |
Prepaid insurance |  |  | 600 |  |  |  | 589 |
Related party receivables |  |  | 20 |  |  |  | 22 |
Non-trade receivables |  |  | 2 |  |  |  | 23 |
Total prepaid expenses and other current assets |  | $ | 2,451 |  |  | $ | 1,594 |
Schedule of Property, Plant and Equipment Useful Life [Table Text Block] |
|  | Years |
Leasehold improvements |  | Shorter of estimated useful lives or the term of the lease |
Computer equipment |  |  | 2 |
Software |  |  | 3 |
Machinery and equipment |  |  | 2 to 5 |
Furniture and office equipment |  |  | 2 to 7 |
Fair Value Measurements, Recurring and Nonrecurring [Table Text Block] |
Description |  | Liabilities Measured at Fair Value |  |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  | Significant Other Observable Inputs (Level 2) |  |  | Significant Other Unobservable Inputs (Level 3) |
Fair value of warrant liability: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
December 31, 2022 |  | $ | 77 |  |  | $ | — |  |  | $ | — |  |  | $ | 77 |
December 31, 2021 |  | $ | 1,412 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,412 |
|  | Warrant Liability Long-Term |
December 31, 2020 |  | $ | 8,192 |
Exercise of warrants |  |  | (52 | )
Change in fair value - net |  |  | (6,728 | )
December 31, 2021 |  | $ | 1,412 |
Change in fair value - net |  |  | (1,335 | )
December 31, 2022 |  | $ | 77 |

X
- Definition Tabular disclosure of property, plant and equipment useful life. + References No definition available. + Details
Name: | mbrx_ScheduleOfPropertyPlantAndEquipmentUsefulLifeTableTextBlock
Namespace Prefix: | mbrx_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the amounts paid in advance for capitalized costs that will be expensed with the passage of time or the occurrence of a triggering event, and will be charged against earnings within one year or the normal operating cycle, if longer; the aggregate carrying amount of current assets, not separately presented elsewhere in the balance sheet; and other deferred costs. + References No definition available. + Details
Name: | us-gaap_DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of financial instruments measured at fair value, including those classified in shareholders' equity measured on a recurring or nonrecurring basis. Disclosures include, but are not limited to, fair value measurements recorded and the reasons for the measurements, level within the fair value hierarchy in which the fair value measurements are categorized and transfers between levels 1 and 2. Nonrecurring fair value measurements are those that are required or permitted in the statement of financial position in particular circumstances. + 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 (b) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19279-110258 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2C -URI https://asc.fasb.org/extlink&oid=126976982&loc=SL7498348-110258 Reference 4: 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 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bb) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
Name: | us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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