Note 10 - Investments in Marketable Securities (Tables)

9 Months Ended

Sep. 30, 2024

Notes Tables

Marketable Securities [Table Text Block]

	September 30, 2024				December 31, 2023
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Investments available for sale:
Marketable equity securities	$	30,176	$	164,754	$	30,176	$	111,117
Corporate debt securities		–		–		2,497		2,441
U.S. Treasury securities		–		–		2,990		2,986
Restricted investments available for sale:
Marketable equity securities		17,702		23,001		24,134		26,779
Corporate debt securities		59,267		58,812		59,586		57,731
Asset-based securities		17,756		16,646		19,388		17,659
U.S. Treasury securities		46,224		44,671		46,771		42,863
State and municipal securities		3,813		3,782		4,106		4,047
	$	174,938	$	311,666	$	189,648		265,623

Schedule of Available-for-Sale Securities Reconciliation [Table Text Block]

	September 30, 2024						December 31, 2023
	Shares		Cost		Fair Value		Shares		Cost		Fair Value
NHI Common Stock		1,630,642	$	24,734	$	137,072		1,630,642	$	24,734	$	91,071

Investments Classified by Contractual Maturity Date [Table Text Block]

	September 30, 2024				December 31, 2023
	Cost		Fair Value		Cost		Fair Value
Maturities:
Within 1 year	$	24,509	$	24,023	$	19,664	$	19,328
1 to 5 years		71,047		69,082		81,517		77,118
6 to 10 years		31,197		30,499		33,515		30,802
Over 10 years		307		307		642		479
	$	127,060	$	123,911	$	135,338	$	127,727