Annual report pursuant to Section 13 and 15(d)

Accounts Payable and Accrued Expenses (Details)

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Accounts Payable and Accrued Expenses (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Accounts Payable and Accrued Expenses    
Accounts payable $ 3,438 $ 3,079
Accrued compensation 535 414
Research and development 2,009 3,496
Other 385 268
Total accounts payable and accrued expenses $ 6,367 $ 7,257