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Property And Equipment (Narrative) (Details) - USD ($)
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Property, Plant and Equipment [Line Items]      
Depreciation expense $ 804,000 $ 310,000 $ 22,000
Proceeds from sale of equipment 0 0  
Gross property and equipment 24,064,000 21,012,000  
Accumulated depreciation $ 1,200,000 $ 396,000  
Gain on sale of property and equipment     346,000
Manufacturing Equipment [Member]      
Property, Plant and Equipment [Line Items]      
Proceeds from sale of equipment     360,000
Manufacturing Equipment [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]      
Property, Plant and Equipment [Line Items]      
Gross property and equipment     892,000
Accumulated depreciation     878,000
Gain on sale of property and equipment     $ 346,000