- DefinitionAmount of net expense for research and development. Excludes cost for computer software product to be sold, leased, or otherwise marketed, writeoff of research and development assets acquired in transaction other than business combination or joint venture formation or both, and write-down of intangible asset acquired in business combination or from joint venture formation or both, used in research and development activity.
| Name: |
mbio_ResearchAndDevelopmentExpenseNetExcludingAcquiredInProcessCost |
| Namespace Prefix: |
mbio_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
debit |
| Period Type: |
duration |