Segment Reporting (Schedule Of Revenue By Product And Geographic Location) (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($) segment	Sep. 30, 2021 USD ($)
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of reportable segments | segment			1
Number of operating segments | segment			1
Consolidated revenue	$ 0	$ 574,000	$ 709,000	$ 574,000
Systems Products [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated revenue		490,000	576,000	490,000
Cycle Units Products [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated revenue		84,000	133,000	84,000
North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated revenue		405,000	526,000	405,000
Rest Of World [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated revenue		$ 169,000	$ 183,000	$ 169,000