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, 2019
Dec. 31, 2018
Accounts Payable and Accrued Expenses    
Accounts payable $ 354 $ 3,089
Accrued employee compensation 477 463
Accrued contracted services and other 270 1,117
Accounts payable and accrued expenses $ 1,101 $ 4,669