Assets - Fair Value (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Short-term investments
Transfer of assets from Level 1 to Level 2	$ 0
Transfer of assets from Level 2 to Level 1	0
Transfer of Liabilities from Level 1 to Level 2	0
Transfer of Liabilities from Level 2 to Level 1	0
Measured on a recurring basis
Cash equivalents
Total Cash equivalents	47,039	$ 41,665
Short-term investments
Total Short-term investments	113,159	104,181
Measured on a recurring basis | U.S. treasuries
Short-term investments
Total Short-term investments	57,008	51,095
Measured on a recurring basis | Government agency securities
Short-term investments
Total Short-term investments	15,183	12,052
Measured on a recurring basis | Corporate debt
Short-term investments
Total Short-term investments	39,082	40,035
Measured on a recurring basis | Commercial paper
Short-term investments
Total Short-term investments	1,886	999
Measured on a recurring basis | Certificate of deposits and time deposits
Cash equivalents
Total Cash equivalents	46,720	41,544
Measured on a recurring basis | Money market cash
Cash equivalents
Total Cash equivalents	319	121
Measured on a recurring basis | Level 1
Cash equivalents
Total Cash equivalents	47,039	41,665
Short-term investments
Total Short-term investments	57,008	51,095
Measured on a recurring basis | Level 1 | U.S. treasuries
Short-term investments
Total Short-term investments	57,008	51,095
Measured on a recurring basis | Level 1 | Certificate of deposits and time deposits
Cash equivalents
Total Cash equivalents	46,720	41,544
Measured on a recurring basis | Level 1 | Money market cash
Cash equivalents
Total Cash equivalents	319	121
Measured on a recurring basis | Level 2
Short-term investments
Total Short-term investments	56,151	53,086
Measured on a recurring basis | Level 2 | Government agency securities
Short-term investments
Total Short-term investments	15,183	12,052
Measured on a recurring basis | Level 2 | Corporate debt
Short-term investments
Total Short-term investments	39,082	40,035
Measured on a recurring basis | Level 2 | Commercial paper
Short-term investments
Total Short-term investments	$ 1,886	$ 999