Other Current Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Operating lease liabilities, current portion	$ 1,941	$ 2,194
Other current obligations	495	121
Total other current liabilities	3,876	3,755
Secured Debt \| Loan and Security Agreement \| Silicon Valley Bank
Debt Instrument [Line Items]
End-of-facility lender fee	$ 1,440	$ 1,440

Amount of the fee that accompanies borrowing money under the debt instrument.

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Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.

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The aggregate carrying amount, as of the balance sheets date, of obligations not otherwise itemized or categorized in the footnotes to the financial statements.

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