Note 9 - Investments in Marketable Securities (Tables)

12 Months Ended

Dec. 31, 2024

Notes Tables

Marketable Securities [Table Text Block]

	December 31, 2024				December 31, 2023
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Investments available for sale:
Marketable equity securities	$	30,176	$	140,064	$	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		18,534		23,190		24,134		26,779
Corporate debt securities		58,927		57,471		59,586		57,731
Asset–backed securities		15,593		14,410		19,388		17,659
U.S. Treasury securities		46,811		44,186		46,771		42,863
State and municipal securities		3,787		3,737		4,106		4,047
	$	173,828		283,058	$	189,648	$	265,623

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

	December 31, 2024						December 31, 2023
	Shares		Cost		Fair Value		Shares		Cost		Fair Value
NHI Common Stock		1,630,642	$	24,734	$	113,003		1,630,642	$	24,734	$	91,071

Investments Classified by Contractual Maturity Date [Table Text Block]

	December 31, 2024				December 31, 2023
	Cost		Fair Value		Cost		Fair Value
Maturities:
Within 1 year	$	25,707	$	25,317	$	19,664	$	19,328
1 to 5 years		66,117		63,379		81,517		77,118
6 to 10 years		32,648		30,606		33,515		30,802
Over 10 years		646		502		642		479
	$	125,118	$	119,804	$	135,338	$	127,727