Investment Securities Table (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023		Mar. 31, 2024
Debt Securities, Available-for-sale [Line Items]
Short-term investment securities	$ 501	[1]	$ 0
Corporate Bond Securities
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Amortized Cost, Current	501
Debt Securities, Available-for-sale, Unrealized Loss	0
Short-term investment securities	$ 501

[1] December 31, 2023 balances were derived from audited consolidated financial statements.