Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2020

Commitments And Contingencies Disclosure [Abstract]

Schedule of ROU Assets and Liabilities Related to 2014 Lease and Temporary Lease

As of December 31, 2020, the Company’s ROU assets and liabilities related to the 2014 Lease and the Temporary Lease are as follows (in thousands):

ROU assets (included in other assets)	$	454
Lease liabilities, current portion (included in    accounts payable and accrued liabilities)	$	—
Lease liabilities, net of current portion		938
Total lease liabilities	$	938

Schedule of Maturities of Lease Liabilities due under 2014 Lease and Temporary Lease

As of December 31, 2020, maturities of the lease liabilities due under the 2014 Lease and the Temporary Lease are as follows (in thousands):

Year ending December 31,
2021	$	17
2022		135
2023		208
2024		214
2025		220
2026		188
Total lease payments		982
Less imputed interest		(44	)
Total operating lease liabilities		938
Less lease liabilities, current portion		—
Lease liabilities, net of current portion	$	938

Supplemental Cash Flow Information Related to Cash Paid for Amounts Included in Measurement of Operating Lease Liabilities

Supplemental cash flow information related to cash paid for amounts included in the measurement of operating lease liabilities was as follows (in thousands):

	Year Ended December 31,
	2020		2019		2018
Cash paid included in operating cash flows	$	163	$	382	N/A

Schedule of Rent Expense

Rent expense was as follows (in thousands):

	Year Ended December 31,
	2020		2019		2018
Operating leases	$	453	$	302	$	302
Short-term lease		36		6		—
Total rent expense	$	489	$	308	$	302