Lease expense for these leases is recognized on a straight-line basis over the lease term. For the three and six months ended June 30, total lease costs are comprised of the following: (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Commitments and Contingencies Disclosure [Abstract]
Operating lease cost	$ 93	$ 66	$ 187	$ 121
Short-term lease cost		2		2
Total net lease cost	$ 93	$ 68	$ 187	$ 123