Quarterly report pursuant to Section 13 or 15(d)

Disaggregation of Revenue (Details)

v3.21.2
Disaggregation of Revenue (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Disaggregation of Revenue [Line Items]        
Timing of revenue recognition: Timing of revenue recognition Timing of revenue recognition: Timing of revenue recognition: Timing of revenue recognition:
Disaggregated revenue $ 718 $ 639 $ 1,943 $ 2,695
Product Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Disaggregated revenue 100 1,347
License And Royalty Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Disaggregated revenue 718 539 1,943 1,323
Contract Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Disaggregated revenue 25
Transferred at Point in Time [Member]        
Disaggregation of Revenue [Line Items]        
Disaggregated revenue 718 639 1,943 2,674
Transferred at Point in Time [Member] | Product Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Disaggregated revenue 100 1,347
Transferred at Point in Time [Member] | License And Royalty Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Disaggregated revenue 718 539 1,943 1,323
Transferred at Point in Time [Member] | Contract Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Disaggregated revenue 4
Transferred over Time [Member]        
Disaggregation of Revenue [Line Items]        
Disaggregated revenue 21
Transferred over Time [Member] | Product Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Disaggregated revenue
Transferred over Time [Member] | License And Royalty Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Disaggregated revenue
Transferred over Time [Member] | Contract Revenue [Member]        
Disaggregation of Revenue [Line Items]        
Disaggregated revenue $ 21