v3.25.4
Stock incentive plans (Tables)
 12 Months Ended
Dec. 31, 2025
Stock incentive plans [Abstract]  
Assumptions used in option valuation calculations
The table below indicates the key assumptions (on a weighted-average basis) used in the option valuation calculations for options granted in 2024 (we did not grant any options in 2025) and a discussion of our methodology for developing each of the assumptions used in the valuation model:
   
Years ended December 31,
  

 
2025
    
2024
  
Expected option term (in years)
    
–
      
6.1
  
Expected volatility
    
–

   
57.7
%
Risk-free interest rate
    
–

   
4.3
%
Dividend yield
    
–

   
0.0
%
Equity award activity
Equity award activity in the 2005 Equity Incentive Plan and the 2014 Equity Incentive Plan, as amended, is summarized below:

 
Stock Options
    
Restricted Stock Units
  
   
Number
of Shares
    
Average Price*
    
Number
of Units
    
Average Price**
  
Outstanding at December 31, 2024
    
1,377,113
    
$
8.41
      
376,565
    
$
6.44
  
Granted
    
–
      
–
      
389,800
      
3.59
  
Exercised
    
–
      
–
      
(129,858
)
    
5.98
  
Forfeited
    
(37,375
)
    
6.67
      
(100,000
)
    
6.54
  
Expired
    
(573,375
)
    
9.04
      
–
      
–
  
Outstanding at December 31, 2025
    
766,363
    
$
8.03
      
536,507
    
$
4.47
  

*
weighted average exercise price per share
**
weighted average grant stock price per share
Equity awards vested and expected to vest
The following summarizes information about equity awards outstanding that are vested and expect to vest and equity awards that are exercisable at December 31, 2025:

Equity Awards Vested and Expected to Vest
  
Equity Awards That Are Exercisable
  
 
Awards
  
Average Price*
  
Aggregate
Intrinsic
Value
(In thousands)
  
Remaining Term**
  
Awards
  
Average Price*
  
Aggregate
Intrinsic
Value
  
Remaining Term**
  
Stock Options
    
766,363
    
$
8.03
    
$
–
      
5.7
      
531,838
    
$
8.52
    
$
–
      
4.78
  
Restricted stock units
    
536,507
      
–
      
2,146
      
1.7
      
–
      
–
      
–
      
–
  

*
weighted average exercise price per share
**
weighted-average contractual remaining term in years