Quarterly report pursuant to Section 13 or 15(d)

Note 11 - Stock-based Compensation (Tables)

v3.6.0.2
Note 11 - Stock-based Compensation (Tables)
9 Months Ended
Jan. 01, 2017
Notes Tables  
Schedule of Share-based Compensation, Employee Stock Purchase Plan, Activity [Table Text Block]
 
 
As of
 
 
Nine Months Ended
 
 
 
January 1, 2017
 
 
January 1, 2017
 
 
 
 
 
 
 
 
 
 
 
Weighted
 
 
 
Shares of
 
 
Shares of
 
 
Average
 
 
 
Common Stock
 
 
Common Stock
 
 
Price per Share
 
Authorized to issue
   
4,500
     
 
     
 
 
Reserved for future issuance
   
1,298
     
 
     
 
 
Issued
   
 
     
19
    $
7.54
 
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
 
 
 
 
 
 
 
 
 
 
Weighted
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Average
 
 
 
 
 
 
In-the-money
 
 
 
 
 
 
 
Weighted
 
 
Remaining
 
 
Aggregate
 
 
Options
 
 
 
Outstanding
 
 
Average
 
 
Contractual
 
 
Intrinsic
 
 
Vested and
 
 
 
Options /
 
 
Exercise
 
 
Term
 
 
Value
 
 
Exercisable
 
 
 
Quantity
 
 
Price per Share
 
 
(in years)
 
 
(in thousands)
 
 
(in thousands)
 
Balance at March 27, 2016
   
7,722,383
    $
7.96
     
4.40
    $
87
     
48
 
Granted
   
1,466,800
     
7.30
     
 
     
 
     
 
 
Exercised
   
(2,045,504
)    
6.97
     
 
     
 
     
 
 
Cancelled
   
(614,454
)    
9.84
     
 
     
 
     
 
 
Forfeited
   
(1,055,074
)    
7.53
     
 
     
 
     
 
 
Balance at January 1, 2017
   
5,474,151
     
8.02
     
4.66
     
16,195
     
4,787
 
                                         
Vested and expected to vest, January 1, 2017
   
4,909,103
     
8.12
     
4.50
     
14,140
     
 
 
Vested and exercisable, January 1, 2017
   
2,491,344
    $
8.85
     
3.19
    $
5,620
     
 
 
Schedule of Cash Proceeds Received from Share-based Payment Awards [Table Text Block]
 
 
Three Months Ended
 
 
Nine Months Ended
 
 
 
January 1,
 
 
December 27,
 
 
January 1,
 
 
December 27,
 
 
 
2017
 
 
2015
 
 
2017
 
 
2015
 
Intrinsic value of options exercised
  $
1,367
    $
39
    $
4,085
    $
637
 
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]
 
 
 
 
 
 
 
 
 
 
Weighted
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Average
 
 
 
 
 
 
 
 
 
 
 
Weighted
 
 
Remaining
 
 
Aggregate
 
 
 
 
 
 
 
Average
 
 
Contractual
 
 
Intrinsic
 
 
 
 
 
 
 
Grant-Date
 
 
Term
 
 
Value
 
 
 
Shares
 
 
Fair Value
 
 
(in years)
 
 
(in thousands)
 
Unvested at March 27, 2016
   
590,833
    $
9.39
     
1.45
    $
3,108
 
Granted
   
622,039
     
8.63
     
 
     
 
 
Issued and released
   
(209,236
)    
8.94
     
 
     
 
 
Forfeited
   
(215,029
)    
9.68
     
 
     
 
 
Unvested at January 1, 2017
   
788,607
    $
8.83
     
1.81
    $
8,501
 
Vested and expected to vest, January 1, 2017
   
608,111
     
 
     
1.62
     
6,555
 
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]
 
 
Three Months Ended
 
 
Nine Months Ended
 
 
 
January 1,
 
 
December 27,
 
 
January 1,
 
 
December 27,
 
 
 
2017
 
 
2015
 
 
2017
 
 
2015
 
Cost of sales
  $
474
    $
98
    $
889
    $
257
 
Research and development
   
926
     
117
     
1,696
     
509
 
Selling, general and administrative
   
2,234
     
596
     
4,546
     
3,044
 
Total stock-based compensation expense
  $
3,634
    $
811
    $
7,131
    $
3,810
 
Schedule of Unrecognized Compensation Cost, Nonvested Awards [Table Text Block]
 
 
January 1, 2017
 
 
 
 
 
 
 
Weighted
 
 
 
 
 
 
 
Average
 
 
 
 
 
 
 
Remaining
 
 
 
Amount
 
 
Recognition
 
 
 
(in thousands)
 
 
Period (in years)
 
Options
  $
4,887
     
2.59
 
RSUs
   
4,557
     
2.58
 
PRSUs
   
630
     
1.69
 
Total unrecognized stock-based compensation expense
  $
10,074
     
 
 
Performance-based Restricted Stock Units [Member]  
Notes Tables  
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
Expected term of grants (years)
   
3
 
Risk-free interest rate
   
0.76
%
Expected volatility
   
50
%