XML 27 R15.htm IDEA: XBRL DOCUMENT
v3.22.1

Accrued and Other Current Liabilities | 12 Months Ended
--- | ---
Dec. 31, 2021
Accrued and Other Current Liabilities [Abstract] |
Accrued and Other Current Liabilities | 8. Accrued and Other Current Liabilities Accrued and other current liabilities consisted of the following at December 31, 2020 and 2021 (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | December 31, | ​ | December 31,
​ |  | 2020 |  | 2021
Accrued research and development | ​ | $ | 781 | ​ | $ | 2,310
Accrued legal and professional fees | ​ |  | 325 | ​ |  | 233
Other current liabilities | ​ |  | 866 | ​ |  | 634
​ | ​ | $ | 1,972 | ​ | $ | 3,177
​ ​ Other current liabilities for the year ended December 31, 2020 includes an approximately $80,000 Payment Protection Program loan received during the year from the US Federal government and subsequently repaid in February 2021.

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: | dtr-types: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