Basis of Presentation and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2023

Accounting Policies [Abstract]

Reconciliation of Cash and Cash Equivalents, and Restricted Cash Reported the Balance Sheet

The following table provides a summary of cash, cash equivalents and restricted cash reported within the balance sheets (in thousands):

	December 31,
	2023		2022
Cash and cash equivalents	$	16,233	$	74,266
Restricted cash		600		1,711
Total	$	16,833	$	75,977

Schedule of Short-Term Investments Held

The following tables summarize the short-term investments held (in thousands):

	December 31, 2023
	Amortized Cost		Gross Unrealized Gains (Losses)			Estimated Fair Value
U.S. treasury securities	$	149,129	$	158		$	149,287
Corporate debt securities		8,255		(3	)		8,252
Asset-backed securities	$	169	$	-		$	169
Total	$	157,553	$	155		$	157,708

	December 31, 2022
	Amortized Cost		Gross Unrealized Losses			Estimated Fair Value
U.S. treasury securities	$	62,776	$	(244	)	$	62,532
Corporate debt securities		102,020		(553	)		101,467
Asset-backed securities	$	6,351	$	(40	)	$	6,311
Total	$	171,147	$	(837	)	$	170,310

Schedule of Contractual Maturities of Available-for-Sale Debt Securities Held

The following table summarizes contractual maturities of available-for-sale securities held (in thousands):

	December 31,
	2023		2022
Due within one year	$	157,540	$	155,920
Due after one but within five years		168		14,390
Total	$	157,708	$	170,310