Note F - Cash, Cash Equivalents And Marketable Securities (Tables)

3 Months Ended

Mar. 31, 2024

Notes Tables

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

	(In Thousands)
	MARKETABLE SECURITIES
	Amortized Cost		Fair Value		Gross Unrealized Gains		Gross Unrealized Losses
March 31, 2024
Certificates of Deposit		19,819		19,846		41		14
Variable Rate Demand Notes		4,526		4,526		-		-
Total Marketable Securities	$	24,345	$	24,372	$	41	$	14
December 31, 2023
Certificates of Deposit		21,305		21,331		58		31
Variable Rate Demand Notes		5,123		5,123		-		-
Total Marketable Securities	$	26,428	$	26,454	$	58	$	31