Note 6 - Investments (Details Textual) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended			9 Months Ended		12 Months Ended
	Sep. 30, 2021	Sep. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023	Jun. 30, 2024
Assets		$ 2,256,103	$ 2,011,698		$ 2,256,103		$ 2,011,698
Liabilities		852,686	622,479		852,686		622,479
Equity Method Investment, Quoted Market Value		600	700		600		700
Proceeds from Sale of Equity Securities, FV-NI					46,731	$ 364
Income (Loss) from Equity Method Investments		(3)		$ (20)	(7)	(99)
Revenue from Contract with Customer, Excluding Assessed Tax		173,632		178,595	529,504	681,591
LeaderMed [Member] | LeaderMed Joint Venture [Member]
Minority Interest, Shares Issued (in shares)	4,703
Subsidiary, Ownership Percentage, Parent	47.00%
Revenue from Contract with Customer, Excluding Assessed Tax	$ 1,000
Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member]
Assets		66,100	85,500		66,100		85,500
Liabilities		$ 23,300	$ 20,800		23,300		20,800
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest					$ (27,700)		$ (37,700)
Pharmsynthez [Member]
Equity Method Investment, Ownership Percentage		6.00%			6.00%
COCP [Member]
Equity Method Investment, Ownership Percentage		2.00%			2.00%
NIMS [Member]
Equity Method Investment, Ownership Percentage		1.00%			1.00%
BioCardia [Member]
Equity Method Investment, Ownership Percentage		1.00%			1.00%
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)		47,000			47,000
Xenetic [Member]
Equity Method Investment, Ownership Percentage		3.00%			3.00%
Zebra [Member]
Equity Method Investment, Ownership Percentage		29.00%			29.00%
Zebra [Member] | Variable Interest Entity, Not Primary Beneficiary [Member]
Equity Method Investment, Ownership Percentage		29.00%	29.00%		29.00%		29.00%
Zebra [Member] | Variable Interest Entity, Not Primary Beneficiary [Member] | Series A-2 Preferred Stock [Member]
Investment Owned, Balance, Shares (in shares)		1,260,000	1,260,000		1,260,000		1,260,000
Zebra [Member] | Variable Interest Entity, Not Primary Beneficiary [Member] | Restricted Stock [Member]
Investment Owned, Balance, Shares (in shares)		900,000	900,000		900,000		900,000
LeaderMed [Member]
Equity Method Investment, Ownership Percentage		47.00%			47.00%
Neovasc [Member]
Equity Method Investment, Ownership Percentage		0.50%			0.50%
Proceeds from Sale of Equity Method Investments			$ 363				$ 363
GeneDx Holdings [Member]
Equity Method Investment, Ownership Percentage		8.10%			8.10%			13.61%
Equity Method Investment, Quoted Market Value		$ 92,200			$ 92,200
Investment Owned, Shares Sold (in shares)		1,386,929
Proceeds from Sale of Equity Securities, FV-NI		$ 46,700
Business Acquisition, Outstanding Shares Held, Percentage		5.00%			5.00%
Income (Loss) from Equity Method Investments		$ 35,400		$ (8,300)	$ 118,600	$ (19,900)
VBI Vaccines Inc. [Member]
Income (Loss) from Equity Method Investments		$ (30)
Equity Ownership, Excluding Consolidated Entity and Equity Method Investee, Percentage		0.00%			0.00%
ChromaDex Corporation [Member]
Equity Method Investment, Ownership Percentage		0.05%			0.05%
Equity Ownership, Excluding Consolidated Entity and Equity Method Investee, Percentage		0.05%			0.05%
Eloxx Pharmaceuticals, Inc. [Member]
Equity Method Investment, Ownership Percentage		1.00%			1.00%
Equity Ownership, Excluding Consolidated Entity and Equity Method Investee, Percentage		1.00%			1.00%
CAMP4 [Member]
Equity Ownership, Excluding Consolidated Entity and Equity Method Investee, Percentage		2.00%			2.00%
HealthSnap, Inc. [Member]
Equity Ownership, Excluding Consolidated Entity and Equity Method Investee, Percentage		4.00%			4.00%
InCellDx [Member]
Equity Method Investment, Ownership Percentage			29.00%				29.00%
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)			700,000				700,000