XML 79 R63.htm IDEA: XBRL DOCUMENT v3.25.1
Stock incentive plans, Stock options (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Remaining Term [Abstract]    
Unrecognized compensation cost related to stock options $ 2,700  
Weighted average period to recognize compensation cost not yet recognized 2 years 8 months 12 days  
Fair value of all awards vested $ 900 $ 1,300
Intrinsic value of stock options exercised 0 3
Cash received from exercise of stock options 0 0
Excess tax benefit in provision for income taxes $ 0 $ 0
2005 Equity Incentive Plan and 2014 Equity Incentive Plan [Member] | Stock Options [Member]    
Number of Shares [Roll Forward]    
Outstanding, beginning of period (in shares) 1,314,475  
Granted (in shares) 179,700  
Exercised (in shares) 0 (1,875)
Forfeited (in shares) (7,750)  
Expired (in shares) (109,312)  
Outstanding, end of period (in shares) 1,377,113 1,314,475
Options vested or expected to vest (in shares) 1,377,113  
Options exercisable, end of period (in shares) 973,963  
Weighted Average Exercise Price [Abstract]    
Outstanding, beginning of period (in dollars per share) [1] $ 8.82  
Granted (in dollars per share) [1] 6.8  
Exercised (in dollars per share) [1] 0  
Forfeited (in dollars per share) [1] 7.11  
Expired (in dollars per share) [1] 10.71  
Outstanding, end of period (in dollars per share) [1] 8.41 $ 8.82
Options vested or expected to vest (in dollars per share) [1] 8.41  
Options exercisable, end of period (in dollars per share) [1] $ 8.96  
Aggregate Intrinsic Value [Abstract]    
Options vested and expected to vest $ 0  
Options exercisable, end of period $ 0  
Remaining Term [Abstract]    
Options vested and expected to vest [2] 4 years 1 month 6 days  
Options exercisable, end of period [2] 2 years 2 months 12 days  
2005 Equity Incentive Plan and 2014 Equity Incentive Plan [Member] | Restricted Share Units [Member]    
Number of Shares [Roll Forward]    
Options vested or expected to vest (in shares) 376,565  
Weighted Average Exercise Price [Abstract]    
Options vested or expected to vest (in dollars per share) [1] $ 0  
Number of Units [Roll Forward]    
Outstanding, beginning of period (in shares) 184,536  
Granted (in shares) 267,024  
Exercised (in shares) (74,995)  
Forfeited (in shares) 0  
Expired (in shares) 0  
Outstanding, end of period (in shares) 376,565 184,536
Weighted Average Grant Stock Price [Abstract]    
Outstanding, beginning of period (in dollars per share) [3] $ 7.76  
Granted (in dollars per share) [3] 5.81  
Exercised (in dollars per share) [3] 7.41  
Forfeited (in dollars per share) [3] 0  
Expired (in dollars per share) [3] 0  
Outstanding, end of period (in dollars per share) [3] $ 6.44 $ 7.76
Aggregate Intrinsic Value [Abstract]    
Restricted stock units vested and expected to vest $ 1,540  
Remaining Term [Abstract]    
Restricted stock units vested and expected to vest [2] 2 years 1 month 6 days  
[1] weighted average exercise price per share
[2] weighted-average contractual remaining term in years
[3] weighted average grant stock price per share