Quarterly report pursuant to Section 13 or 15(d)

Selected Balance Sheet Information - Schedule of property, plant and equipment, net (Details)

v3.21.1
Selected Balance Sheet Information - Schedule of property, plant and equipment, net (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Property and equipment, net    
Property, Plant and Equipment, Gross, Total $ 1,278 $ 1,263
Less: accumulated depreciation and amortization (1,122) (1,089)
Total 156 174
Computers and office equipment [Member]    
Property and equipment, net    
Property, Plant and Equipment, Gross, Total 828 813
Leasehold Improvements [Member]    
Property and equipment, net    
Property, Plant and Equipment, Gross, Total 439 439
Software [Member]    
Property and equipment, net    
Property, Plant and Equipment, Gross, Total $ 11 $ 11