Leases (Details 2) - USD ($) $ in Thousands	12 Months Ended
Leases (Details 2) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases	$ 41	$ 61
Supplemental non-cash amounts of lease liabilities arising from obtaining right-of-use assets/(decrease) of lease liability due to cancellation of leases	$ (31)	$ 176