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Accounts Payable and Accrued Expenses and Other Current Liabilities - Schedule of Accounts Payable and Accrued Expenses (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Payables and Accruals [Abstract]    
Accounts payable $ 2,059 $ 1,689
Salaries and other compensation 1,437 1,462
Legal and accounting 1,365 1,404
Accrued severance 1,843 1,053
Benefit plan accrual 448 557
Other 874 930
Total accounts payable and accrued expenses $ 8,026 $ 7,095