XML 43 R23.htm IDEA: XBRL DOCUMENT v3.21.1
Property And Equipment (Narrative) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Property, Plant and Equipment [Line Items]    
Gain on sale of property and equipment $ 346  
Manufacturing Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Proceeds from sale of equipment 360  
Property and equipment, original cost 892  
Accumulated depreciation 878  
Gain on sale of property and equipment $ 346