The Company and Basis of Presentation (Details) $ in Thousands		3 Months Ended				6 Months Ended
	Sep. 12, 2022	Jun. 30, 2023 USD ($)	Mar. 31, 2023 USD ($)	Jun. 30, 2022 USD ($)	Mar. 31, 2022 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)
The Company and Basis of Presentation
Reverse stock split, ratio	0.33
Cash		$ 28,688				$ 28,688		$ 33,364
Accumulated deficit		99,133				99,133		$ 95,795
Net losses		$ 734	$ 2,604	$ 3,303	$ 2,875	$ 3,338	$ 6,178