Quarterly report pursuant to Section 13 or 15(d)

Note 3 - Revenue - Disaggregation of Revenue (Details)

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Note 3 - Revenue - Disaggregation of Revenue (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended
Mar. 31, 2021
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Total revenue   $ 5,370 $ 4,057 $ 20,056 $ 22,975
Seattle Genetics Inc. [Member]          
Total revenue   155 (280) 3,074 424
Astra Zeneca A B [Member]          
Total revenue $ 13,000 4,404 1,607 9,026 18,309
Les Laboratoires Servier And Institut De Recherches Internationales Servier [Member]          
Total revenue   258 1,867 5,223 3,379
Genentech [Member]          
Total revenue   $ 553 $ 863 $ 2,733 $ 863