Investments - Investments consists of available-for-sale securities (Details) - Short Term Marketable Securities [Member] - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2023	Dec. 31, 2022
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	$ 77,374	$ 80,339
Unrealized Gain	0	8
Unrealized Loss	(35)	(366)
Estimated Fair Value	77,339	79,981
US Treasury Securities [Member]
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	54,710	30,628
Unrealized Gain	0	0
Unrealized Loss	(29)	(177)
Estimated Fair Value	54,681	30,451
Commercial paper
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	6,648	29,543
Unrealized Gain	0	0
Unrealized Loss	0	0
Estimated Fair Value	6,648	29,543
Corporate Bonds [Member]
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	5,499	16,815
Unrealized Gain	0	0
Unrealized Loss	(2)	(189)
Estimated Fair Value	5,497	16,626
US Government Debt Securities [Member]
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	10,517	3,353
Unrealized Gain	0	8
Unrealized Loss	4	0
Estimated Fair Value	$ 10,513	$ 3,361