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DETAILED ACCOUNT BALANCES
 3 Months Ended
Mar. 31, 2022
Payables and Accruals [Abstract]  
DETAILED ACCOUNT BALANCES DETAILED ACCOUNT BALANCES
Prepaid expenses and other current assets consisted of the following (in thousands):
March 31,
2022		December 31,
2021
Prepaid clinical trial costs$2,280 $1,443 
Prepaid insurance837 921 
Other prepaid expenses187 168 
Accounts receivable92 125 
Other short-term assets8 59 
Total$3,404 $2,716 

Accrued liabilities consisted of the following (in thousands):
March 31,
2022		December 31,
2021
Accrued compensation$775 $1,861 
Accrued contracted research and development services 446 823 
Accrued professional fees485 452 
Total$1,706 $3,136