Note 11 - License, Research and Collaboration Agreements (Details Textual) - USD ($) $ in Thousands	1 Months Ended		6 Months Ended
	Apr. 30, 2024	Nov. 30, 2018	Jun. 30, 2024
ABL Bio Agreement [Member]
Upfront Payment		$ 5,000
Development Milestone Payment		6,000
Maximum Development and Regulatory Milestone Payments		96,000
ABL Bio Agreement [Member] | Oncology [Member]
Maximum Commercial Milestone Payments and Royalties		303,000
ABL Bio Agreement [Member] | Ophthalmology [Member]
Maximum Development and Regulatory Milestone Payments		75,000
Maximum Commercial Milestone Payments and Royalties		$ 110,000
Adimab Agreement [Member]
Milestone Payments Paid			$ 0
Milestone Payment Obligation			$ 2,000
Elpiscience Agreement [Member]
Milestone Payments Paid	$ 1,000
Sublicensing Revenue Percentage	15.00%
Sublicensing Revenue Obligation	$ 1,000