XML 27 R22.htm IDEA: XBRL DOCUMENT v3.20.1
Note 7 - Stock-based Compensation (Tables)
 3 Months Ended
Mar. 31, 2020
Notes Tables  
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]
   
Three-month period
 ended
  
   
March 31
,
    
March 31
,
  
   
20
20
    
201
9
  
Stock options
   $
192
     $
174
  
Restricted stock grants
    
38
      
11
  
Total
   $
230
     $
185
  
Share-based Payment Arrangement, Option, Activity [Table Text Block]
   
Number of
Shares
    
Weighted
Average
Exercise
Price
    
Weighted
Average
Remaining
Contractual
Term (years)
    
Aggregate
Intrinsic
Value
  
Outstanding at January 1, 2020
    
1,541,792
     $
6.88
      
 
      
 
  
Granted
    
-
      
-
      
 
      
 
  
Exercised
    
(7,633
 )    
3.75
      
 
      
 
  
Forfeited or expired
    
(4,751
 )    
8.12
      
 
      
 
  
Outstanding at March 31, 2020
    
1,529,408
     $
6.89
      
2.98
     $
478
  
Vested and expected to vest at March 31, 2020
    
1,438,369
     $
6.80
      
2.81
     $
478
  
Exercisable at March 31, 2020
    
1,092,278
     $
6.29
      
1.89
     $
478