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Note 9 - Investments in Marketable Securities (Tables)

9 Months Ended

Sep. 30, 2025

Notes Tables

Marketable Securities [Table Text Block]

		September 30, 2025								December 31, 2024
		Amortized Cost				Fair Value				Amortized Cost				Fair Value
Investments available for sale:
Marketable equity securities		$	30,176			$	166,754			$	30,176			$	140,064
Restricted investments available for sale:
Marketable equity securities			12,767				17,482				18,534				23,190
Corporate debt securities			62,677				63,095				58,927				57,471
Asset-based securities			13,759				12,942				15,593				14,410
U.S. Treasury securities			44,470				43,771				46,811				44,186
State and municipal securities			3,115				3,104				3,787				3,737
		$	166,964			$	307,148			$	173,828				283,058

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

		September 30, 2025												December 31, 2024
		Shares				Cost				Fair Value				Shares				Cost				Fair Value
NHI Common Stock			1,630,642			$	24,734			$	129,636				1,630,642			$	24,734			$	113,003

Investments Classified by Contractual Maturity Date [Table Text Block]

		September 30, 2025								December 31, 2024
		Cost				Fair Value				Cost				Fair Value
Maturities:
Within 1 year		$	17,348			$	17,010			$	25,707			$	25,317
1 to 5 years			51,371				51,167				66,117				63,379
6 to 10 years			38,826				39,123				32,648				30,606
Over 10 years			16,476				15,612				646				502
		$	124,021			$	122,912			$	125,118			$	119,804

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