Lease expense for these leases is recognized on a straight-line basis over the lease term. For the three and nine months ended September 30, total lease costs are comprised of the following: (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Commitments and Contingencies Disclosure [Abstract]
Operating lease cost	$ 100	$ 93	$ 287	$ 215
Short-term lease cost				2
Total net lease cost	$ 100	$ 93	$ 287	$ 217