XML 25 R13.htm IDEA: XBRL DOCUMENT
v3.21.1

Accrued Expenses | 3 Months Ended
--- | ---
Mar. 31, 2021
Payables and Accruals [Abstract] |
Accrued Expenses | Accrued Expenses Accrued expenses consist of the following (in thousands):
| March 31, |  | December 31,
| 2021 |  | 2020
Payroll and employee related expenses | $ | 1,840 |  |  | $ | 3,049 |
Collaboration and licensing | 1,350 |  |  | 1,350 |
Accrued patent fees | 471 |  |  | 534 |
Accrued external research and development costs | 2,010 |  |  | 2,029 |
Accrued professional and consulting services | 802 |  |  | 798 |
Accrued interest | 170 |  |  | 170 |
Other | 204 |  |  | 216 |
Accrued expenses | $ | 6,847 |  |  | $ | 8,146 |

X
- Definition The entire disclosure for accounts payable, accrued expenses, and other liabilities that are classified as current at the end of the reporting period. + References No definition available. + Details
Name: | us-gaap_AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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