Marketable Securities (Tables)

3 Months Ended

Mar. 31, 2024

Investments, Debt and Equity Securities [Abstract]

Schedule of marketable securities

			Amortized		Unrealized
	Market value		cost basis		loss, net
	(In thousands)
December 31, 2023:
Current assets	$	35,354	$	35,359	$	(5)
March 31, 2024:
Current assets	$	23,701	$	23,712	$	(11)