Segment Reporting (Schedule Of Revenue By Product And Geographic Location) (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2022 USD ($)	Jun. 30, 2022 USD ($) segment
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of reportable segments | segment		1
Number of operating segments | segment		1
Consolidated revenue	$ 265	$ 709
Systems Products [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated revenue	209	576
Cycle Units Products [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated revenue	56	133
North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated revenue	214	526
Rest Of World [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated revenue	$ 51	$ 183