Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2022

Commitments and Contingencies Disclosure [Abstract]

Schedule of Maturity Analysis of Annual Undiscounted Cash Flows of Operating Lease Liabilities

The following is a maturity analysis of the annual undiscounted cash flows of the operating lease liabilities as of March 31, 2022 (in thousands):

Year ended:
December 31, 2022	$	369
December 31, 2023		9
December 31, 2024		9
December 31, 2025		1
Total minimum lease payments		388
Less imputed interest		(22	)
Total	$	366

Schedule of Lease Cost and Other Information of Operating Lease Liabilities

	Three Months Ended March 31,
	2021			2022
Lease cost:
Operating lease cost	$	122		$	118
Short-term lease cost		-			13
Sublease income		(13	)		(13	)
Total lease cost	$	109		$	118
Other information
Cash paid for amounts included in the measurement of lease liabilities	$	141		$	140
Operating cash flows from operating leases	$	(14	)	$	(18	)
Weighted-average remaining lease term - operating leases	1.7 years			0.8 years
Weighted-average discount rate - operating leases		10.1	%		10.1	%