Warrant Liabilities (Details 1) $ in Thousands	Mar. 31, 2021 USD ($)
Current portion of warrant liability	$ 1,979
Warrant liability	6,095
Warrant Liability Duration, total	8,074
Feb-2021 Warrant [Member]
Current portion of warrant liability	0
Warrant liability	3,920
Warrant Liability Duration, total	3,920
Sep-2018 Warrant [Member]
Current portion of warrant liability	1,979
Warrant liability	0
Warrant Liability Duration, total	1,979
Aug-2020 Warrant [Member]
Current portion of warrant liability	0
Warrant liability	2,175
Warrant Liability Duration, total	$ 2,175