XML 27 R14.htm IDEA: XBRL DOCUMENT v3.22.0.1
Accounts payable and other liabilities
 12 Months Ended
Dec. 31, 2021
Payables and Accruals [Abstract]  
Accounts payable and other liabilities Accounts payable and other liabilities
Accrued liabilities consist of the following (in thousands):
December 31,
20212020
Trade accounts payable$526 $1,323 
Accrued clinical and preclinical expenses2,399 1,687 
Accrued compensation and vacation3,263 3,244 
Other accrued liabilities1,227 927 
$7,415 $7,181