Deferred Revenue (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Deferred Revenue, Current
Total Deferred Revenue, Current	$ 35	$ 182
Total Deferred Revenue	35	182
Service and Other Agreements [Member]
Deferred Revenue, Current
Total Deferred Revenue, Current	35	93
Maintenance Agreements [Member]
Deferred Revenue, Current
Total Deferred Revenue, Current		$ 89