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Fair Value Measurements (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Cash equivalents:    
Fair Value, Assets and Liabilities Measured on Recurring [Line Items]    
Cash equivalents: $ 18,836 $ 15,254
Cash equivalents: | Level 1    
Fair Value, Assets and Liabilities Measured on Recurring [Line Items]    
Cash equivalents: 18,836 15,254
Cash equivalents: | Level 2    
Fair Value, Assets and Liabilities Measured on Recurring [Line Items]    
Cash equivalents: 0 0
Cash equivalents: | Level 3    
Fair Value, Assets and Liabilities Measured on Recurring [Line Items]    
Cash equivalents: 0 $ 0
Certificates of deposit    
Fair Value, Assets and Liabilities Measured on Recurring [Line Items]    
Cash equivalents: 5,000  
Certificates of deposit | Level 1    
Fair Value, Assets and Liabilities Measured on Recurring [Line Items]    
Cash equivalents: 5,000  
Certificates of deposit | Level 2    
Fair Value, Assets and Liabilities Measured on Recurring [Line Items]    
Cash equivalents: 0  
Certificates of deposit | Level 3    
Fair Value, Assets and Liabilities Measured on Recurring [Line Items]    
Cash equivalents: $ 0