Annual report [Section 13 and 15(d), not S-K Item 405]

Stock-Based Compensation - Employee Stock Purchase Plan (Details)

v3.25.0.1
Stock-Based Compensation - Employee Stock Purchase Plan (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Employee Stock      
Stock Option Disclosures      
Weighted average grant date fair value (in dollars per share) $ 2.34 $ 2.84 $ 2.87
2017 ESPP      
Stock Option Disclosures      
Discount from market value on common stock 15.00%    
Offering period 6 months    
Maximum amount available to participants per year $ 25    
2017 ESPP | Employee Stock      
Stock Option Disclosures      
Shares authorized for issuance (in shares) 3,000    
Total stock-based compensation expense $ 371 $ 333 $ 844