Annual report pursuant to Section 13 and 15(d)

Selected Balance Sheet Information - Schedule of accrued expenses (Details)

v3.20.4
Selected Balance Sheet Information - Schedule of accrued expenses (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Selected Balance Sheet Information    
Accrued clinical consulting services $ 700 $ 684
Accrued vendor payments 225 456
Accrued manufacturing costs   636
Total $ 925 $ 1,776