v3.26.1
Fair value measurement (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Cash equivalents $ 6,558 $ 5,794
Fair Value, Recurring [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Total 27,628 52,814
Money Market Funds [Member] | Fair Value, Recurring [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Cash equivalents 3,307 4,408
Asset-Backed Securities [Member] | Fair Value, Recurring [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Marketable securities 2,014 2,023
Commercial Paper [Member] | Fair Value, Recurring [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Marketable securities 1,783 9,125
Corporate Bond Securities [Member] | Fair Value, Recurring [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Marketable securities 12,672 18,171
US Treasury Securities [Member] | Fair Value, Recurring [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Marketable securities 7,852 19,087
Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Total 3,307 4,408
Fair Value, Inputs, Level 1 [Member] | Money Market Funds [Member] | Fair Value, Recurring [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Cash equivalents 3,307 4,408
Fair Value, Inputs, Level 1 [Member] | Asset-Backed Securities [Member] | Fair Value, Recurring [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Marketable securities
Fair Value, Inputs, Level 1 [Member] | Commercial Paper [Member] | Fair Value, Recurring [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Marketable securities
Fair Value, Inputs, Level 1 [Member] | Corporate Bond Securities [Member] | Fair Value, Recurring [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Marketable securities
Fair Value, Inputs, Level 1 [Member] | US Treasury Securities [Member] | Fair Value, Recurring [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Marketable securities
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Total 24,321 48,406
Fair Value, Inputs, Level 2 [Member] | Money Market Funds [Member] | Fair Value, Recurring [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Cash equivalents
Fair Value, Inputs, Level 2 [Member] | Asset-Backed Securities [Member] | Fair Value, Recurring [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Marketable securities 2,014 2,023
Fair Value, Inputs, Level 2 [Member] | Commercial Paper [Member] | Fair Value, Recurring [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Marketable securities 1,783 9,125
Fair Value, Inputs, Level 2 [Member] | Corporate Bond Securities [Member] | Fair Value, Recurring [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Marketable securities 12,672 18,171
Fair Value, Inputs, Level 2 [Member] | US Treasury Securities [Member] | Fair Value, Recurring [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Marketable securities 7,852 19,087
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Total
Fair Value, Inputs, Level 3 [Member] | Money Market Funds [Member] | Fair Value, Recurring [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Cash equivalents
Fair Value, Inputs, Level 3 [Member] | Asset-Backed Securities [Member] | Fair Value, Recurring [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Marketable securities
Fair Value, Inputs, Level 3 [Member] | Commercial Paper [Member] | Fair Value, Recurring [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Marketable securities
Fair Value, Inputs, Level 3 [Member] | Corporate Bond Securities [Member] | Fair Value, Recurring [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Marketable securities
Fair Value, Inputs, Level 3 [Member] | US Treasury Securities [Member] | Fair Value, Recurring [Member]    
Fair Value, off-Balance-Sheet Risks, Disclosure Information [Line Items]    
Marketable securities