Note 11 - Related Party Transactions (Details Textual)	1 Months Ended		3 Months Ended		9 Months Ended
	Jul. 31, 2025 USD ($)	Jan. 31, 2024 USD ($)	Sep. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)	Dec. 31, 2024	Aug. 01, 2024 USD ($) a	Jul. 31, 2024 a	Jan. 09, 2024 USD ($)	May 04, 2023 USD ($)	Jan. 31, 2013 USD ($)
Related Party Transaction [Line Items]
Debt Instrument, Face Amount												$ 175,000,000
Beckman Coulter [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Amounts of Transaction					$ 1,800,000
Integrated DNA Technologies Inc. [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Amounts of Transaction					2,000,000
Leica Microsystems Inc. [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Amounts of Transaction					$ 300,000
Ruen-Hui Biopharmaceuticals, Inc. [Member]
Related Party Transaction [Line Items]
Equity Method Investment, Ownership Percentage											10.00%
Ruen-Hui Biopharmaceuticals, Inc. [Member] | License Agreement [Member]
Related Party Transaction [Line Items]
Collaborative Arrangement, Upfront Payments											$ 150,000
Collaborative Arrangement, Maximum Regulatory Milestone Payments											$ 1,000,000
Pharmsynthez [Member]
Related Party Transaction [Line Items]
Equity Method Investment, Ownership Percentage			6.00%		6.00%
Xenetic [Member]
Related Party Transaction [Line Items]
Equity Method Investment, Ownership Percentage			3.00%		3.00%
Zebra [Member]
Related Party Transaction [Line Items]
Equity Method Investment, Ownership Percentage			29.00%		29.00%
Niagen [Member]
Related Party Transaction [Line Items]
Equity Method Investment, Ownership Percentage			0.04%		0.04%
COCP [Member]
Related Party Transaction [Line Items]
Equity Method Investment, Ownership Percentage			2.00%		2.00%
NIMS [Member]
Related Party Transaction [Line Items]
Equity Method Investment, Ownership Percentage			1.00%		1.00%
Eloxx [Member]
Related Party Transaction [Line Items]
Equity Method Investment, Ownership Percentage			1.00%		1.00%
LeaderMed [Member]
Related Party Transaction [Line Items]
Equity Method Investment, Ownership Percentage			47.00%		47.00%
GeneDx [Member]
Related Party Transaction [Line Items]
Equity Method Investment, Ownership Percentage							2.20%
The 2029 Convertible Notes 1 [Member]
Related Party Transaction [Line Items]
Debt Instrument, Face Amount										$ 230,000,000
The 2029 Convertible Notes 1 [Member] | Convertible Debt [Member]
Related Party Transaction [Line Items]
Debt Instrument, Issued, Principal		$ 71,100,000
The 2023 Convertible Notes [Member]
Related Party Transaction [Line Items]
Interest Payable		16,100,000
The 2023 Convertible Notes [Member] | Convertible Debt [Member]
Related Party Transaction [Line Items]
Debt Instrument, Face Amount		$ 55,000,000
Frost Real Estate Holdings, LLC [Member]
Related Party Transaction [Line Items]
Area of Real Estate Property (Acre) | a								26,328	29,500
Operating Leases, Monthly Payments, Year One								$ 91,000
Operating Leases, Monthly Payments, Year Five								$ 103,000
Executive Officer [Member] | Reimbursement of Travel Expenses [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Amounts of Transaction			$ 0	$ 0	$ 0	$ 23,900
Chief Executive Officer [Member] | Federal Trade Commission [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Amounts of Transaction	$ 105,000