Leases (Narrative) (Details) $ in Thousands		1 Months Ended		12 Months Ended
	Dec. 15, 2025 USD ($) ft² item	Jan. 31, 2023 ft² item	Aug. 31, 2021 USD ($) ft²	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Sep. 30, 2025 USD ($)	Jul. 31, 2025 USD ($) ft²	Nov. 30, 2024 item	Oct. 31, 2024 USD ($) ft²	Apr. 30, 2024 USD ($)
Lessee, Lease, Description [Line Items]
Lease liability				$ 22,054
Operating lease right-of-use assets				17,488	$ 18,805
Cash paid for amounts included in measurement of operating lease liabilities				5,700	5,200	$ 4,100
Mountain View, California [Member]
Lessee, Lease, Description [Line Items]
Rentable area (in square feet) | ft²			61,000
Proceeds from tenant improvement allowance			$ 1,800
Unused tenant improvement allowance			$ 1,400
Letter of credit provided in place of security deposit				4,300	4,300
Santa Rosa, California [Member]
Lessee, Lease, Description [Line Items]
Rentable area (in square feet) | ft²										4,000
Leases, initial term (in months)										29 months
Security deposit										$ 8
Lease liability										169
Operating lease right-of-use assets										$ 169
San Francisco, California [Member]
Lessee, Lease, Description [Line Items]
Rentable area (in square feet) | ft²								8,100
Leases, initial term (in months)								39 months
Security deposit								$ 90
Lease liability								1,254
Operating lease right-of-use assets								$ 1,254
Rohnert Park, California [Member]
Lessee, Lease, Description [Line Items]
Rentable area (in square feet) | ft²	13,100
Unused tenant improvement allowance	$ 173
Leases, initial term (in months)	63 months
Security deposit	$ 39
Renewal term	3 years
Number of options | item	1
Monthly payment	$ 32
Austin, Texas [Member]
Lessee, Lease, Description [Line Items]
Rentable area (in square feet) | ft²		26,000
Security deposit				$ 150	$ 150
Lease liability							$ 561
Operating lease right-of-use assets							$ 561
Renewal term		5 years					12 months
Number of options | item		0
Tokyo, Japan [Member]
Lessee, Lease, Description [Line Items]
Lease liability											$ 420
Operating lease right-of-use assets											$ 420
Renewal term											3 years
Number of contracts | item									1