Quarterly report pursuant to Section 13 or 15(d)

Note 8 - Summary of Stock Options (Tables)

v3.7.0.1
Note 8 - Summary of Stock Options (Tables)
3 Months Ended
Mar. 31, 2017
Notes Tables  
Share-based Compensation, Stock Options, Activity [Table Text Block]
 
 
Three Months Ended March 31, 2017
 
 
 
 
 
 
 
 
 
 
 
Weighted
 
 
 
 
 
 
 
 
 
 
 
Weighted
 
 
Average
 
 
Aggregate
 
 
 
Number
 
 
Average
 
 
Remaining
 
 
Intrinsic
 
 
 
of
 
 
Exercise
 
 
Contractual
 
 
Value
 
 
 
Shares
 
 
Price
 
 
Term (years)
 
 
(in thousands)
 
                                 
Options outstanding, beginning of period
   
1,909,764
    $
6.19
     
9.12
    $
211,396
 
Options granted
   
229,860
    $
4.46
     
 
     
 
 
Options exercised
   
-
    $
-
     
 
     
 
 
Options canceled
   
(5,410
)   $
6.38
     
 
     
 
 
Options outstanding, end of period
   
2,134,214
    $
6.00
     
8.98
    $
1,832,711
 
                                 
Vested and exercisable and expected to vest, end of period
   
1,980,152
    $
6.03
     
8.94
    $
1,692,844
 
                                 
Vested and exercisable, end of period
   
501,273
    $
7.06
     
8.05
    $
419,952
 
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]
 
 
 
 
 
Options Outstanding
 
 
Options Exercisable
 
Range of
Exercise Prices
 
 
Number
Outstanding
as of
March 31, 2017
 
 
Weighted
Average
Exercise
Price
 
 
Weighted
Average
Remaining
Contractual
Term (Years)
 
 
Number
Exercisable
as of
March 31, 2017
 
 
Weighted
Average
Exercise
Price
 
                                               
 
$2.64
 
     
12,500
    $
2.64
     
8.12
     
5,990
    $
2.64
 
$3.68
-
$3.76
     
79,376
    $
3.75
     
7.86
     
41,343
    $
3.75
 
$4.46
-
$4.92
     
427,829
    $
4.62
     
8.83
     
121,211
    $
4.80
 
 
$5.22
 
     
595,034
    $
5.22
     
9.74
     
41,748
    $
5.22
 
 
$6.00
 
     
562,074
    $
6.00
     
8.70
     
176,563
    $
6.00
 
$6.24
-
$6.40
     
129,267
    $
6.35
     
8.91
     
36,034
    $
6.35
 
$7.00
-
$7.92
     
282,219
    $
7.71
     
9.22
     
32,469
    $
7.72
 
 
$9.92
 
     
38,135
    $
9.92
     
5.65
     
38,135
    $
9.92
 
$56.00
-
$296.00
     
7,780
    $
83.66
     
0.58
     
7,780
    $
83.66
 
 
 
 
     
2,134,214
    $
6.00
     
8.98
     
501,273
    $
7.06
 
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
 
 
Three Months Ended
 
 
 
March 31,
 
 
 
2017
 
 
2016
 
                 
Expected term (in years)
   
5
     
5
 
Average volatility
   
48
%    
66
%
Risk-free interest rate
   
2.02
%    
1.55
%
Dividend yield
   
0
%    
0
%
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]
 
 
Three Months Ended
 
 
 
March 31,
 
 
 
2017
 
 
2016
 
                 
Cost of revenue
  $
3
    $
-
 
Research and development
   
51
     
21
 
Selling, general and administrative
   
318
     
167
 
Total
  $
372
    $
188