Annual report pursuant to Section 13 and 15(d)

Property and Equipment - Schedule of Property and Equipment (Details)

v3.21.1
Property and Equipment - Schedule of Property and Equipment (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Property, Plant and Equipment [Line Items]    
Total property and equipment, gross $ 2,139 $ 2,241
Less accumulated depreciation and amortization (1,820) (1,794)
Total property and equipment, net 319 447
Equipment    
Property, Plant and Equipment [Line Items]    
Total property and equipment, gross 1,173 1,195
Furniture And Fixtures    
Property, Plant and Equipment [Line Items]    
Total property and equipment, gross 112 112
Leasehold Improvements    
Property, Plant and Equipment [Line Items]    
Total property and equipment, gross 201 201
Computer Equipment And Software    
Property, Plant and Equipment [Line Items]    
Total property and equipment, gross 150 148
Loaned Systems    
Property, Plant and Equipment [Line Items]    
Total property and equipment, gross $ 503 $ 585