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Leases - Summary of Operating and Financing Leases (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2021 USD ($)
Lease cost
Operating lease cost	$ 169
Sublease income	(44)
Total	125
Other information
Operating cash flows out from operating leases	(169)
Operating cash flows in from operating leases	44
U.S. [Member]
Lease cost
Operating lease cost	112
Total	112
Other information
Operating cash flows out from operating leases	$ (112)
Weighted average remaining lease term	1 year 10 months 25 days
Weighted average discount rate - operating leases	8.00%
Ireland [Member]
Lease cost
Operating lease cost	$ 57
Sublease income	(44)
Total	13
Other information
Operating cash flows out from operating leases	(57)
Operating cash flows in from operating leases	$ 44
Weighted average remaining lease term	3 months 19 days
Weighted average discount rate - operating leases	8.00%

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Amount of lease cost recognized by lessee for lease contract.

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