Marketable Securities - Available-for-sale Marketable Securities in Gross Unrealized Loss Position (Details) $ in Thousands	Sep. 30, 2023 USD ($)
Marketable Securities [Line Items]
Estimated fair value, less than 12 months	$ 4,251
Gross unrealized holding losses, less than 12 months	(19)
Estimated fair value, more than 12 months	0
Gross unrealized holding losses, more than 12 months	0
Estimated fair value	4,251
Gross unrealized holding losses	(19)
US Treasury securities [Member]
Marketable Securities [Line Items]
Estimated fair value, less than 12 months	3,278
Gross unrealized holding losses, less than 12 months	(3)
Estimated fair value, more than 12 months	0
Gross unrealized holding losses, more than 12 months	0
Estimated fair value	3,278
Gross unrealized holding losses	(3)
Corporate bonds and notes [Member]
Marketable Securities [Line Items]
Estimated fair value, less than 12 months	973
Gross unrealized holding losses, less than 12 months	(16)
Estimated fair value, more than 12 months	0
Gross unrealized holding losses, more than 12 months	0
Estimated fair value	973
Gross unrealized holding losses	$ (16)