Short-term Investment Securities (Details) - USD ($)	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Debt Securities, Available-for-sale [Line Items]
Short-term investment securities	$ 119,575,000		$ 118,334,000
Realized gain (loss) on available-for-sale securities	0	$ 0
Accumulated other comprehensive income (loss)	(21,000)		188,000
Debt Securities, Available For Sale
Debt Securities, Available-for-sale [Line Items]
Short-term investment securities	$ 119,600,000		118,300,000
Weighted-average fixed rate	4.50%	5.10%
Unrealized loss on investment securities, net of deferred taxes	$ 221,000	$ 112,000
Accumulated other comprehensive income (loss)	$ (19,000)		$ (201,000)