Quarterly report pursuant to Section 13 or 15(d)

Accounts Payable and Accrued Expenses (Details)

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Accounts Payable and Accrued Expenses (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Accounts Payable and Accrued Expenses    
Accounts payable $ 2,314 $ 3,079
Accrued compensation 122 414
Research and development 3,088 3,496
Other 315 268
Accounts payable and accrued expenses - related party 1,149 862
Total accounts payable and accrued expenses $ 6,988 $ 8,119