XML 53 R31.htm IDEA: XBRL DOCUMENT
v3.20.4

Accrued Expenses (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2020
Accrued Expenses |
Schedule of accrued expenses | Accrued expenses consisted of the following (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | As of
​ | ​ | December 31,
​ |  | 2020 |  | 2019
External research and development expenses | ​ | $ | 12,820 | ​ | $ | 735
Employee related expenses | ​ | ​ | 5,323 | ​ | ​ | 4,971
Intellectual property and patent related fees | ​ | ​ | 4,240 | ​ | ​ | 3,725
Sublicensing expenses | ​ | ​ | 771 | ​ | ​ | 11,416
Professional service expenses | ​ | ​ | 533 | ​ | ​ | 674
Other expenses | ​ | ​ | 359 | ​ | ​ | 599
Total accrued expenses | ​ | $ | 24,046 | ​ | $ | 22,120

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

X
- Definition Tabular disclosure of the components of accrued liabilities. + References No definition available. + Details
Name: | us-gaap_ScheduleOfAccruedLiabilitiesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration