Description of Business and Summary of Significant Accounting Policies (Tables)
 9 Months Ended
Sep. 30, 2016
Description of Business and Summary of Significant Accounting Policies  
Schedule of revenue from United States, Canada and all other international dealers and distributors combined

The following table sets forth revenue from U.S., Canadian and all other international dealers and distributors combined (in thousands):

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Three Months Ended

 

Nine Months Ended

 

 

 

 

September 30,

 

September 30,

 

 

 

    

2016

    

2015

    

2016

    

2015

 

 

Revenue-United States

 

$
39,670

 

$
29,300

 

$
108,506

 

$
80,571

 

 

Revenue-Canada

 

 
4,246

 

 
3,702

 

 
11,355

 

 
10,910

 

 

Revenue-all other international sources

 

 
11,269

 

 
10,556

 

 
31,574

 

 
28,801

 

 

Total revenue

 

$
55,185

 

$
43,558

 

$
151,435

 

$
120,282

 

 

International revenue (excluding Canada) as a percent of total revenue

 

 
20

%  

 
24

%  

 
21

%  

 
24

%  

 

 

Schedule of changes in the product warranty liability

The following table presents the changes in the product warranty liability for the nine months ended September 30, 2016 (in thousands):

 

 

 

 

 

 

 

 

    

Warranty Liability

 

Balance at December 31, 2015

 

$
1,415

 

Warranty costs accrued

 

 
1,145

 

Warranty claims

 

 
(863)

 

Balance at September 30, 2016

 

$
1,697

 

 

 

Schedule of reconciliation of the numerator and denominator used in the calculation of basic and diluted net loss per share

The following table presents the reconciliation of the numerator and denominator used in the calculation of basic and diluted net income (loss) per share (in thousands):

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Three Months Ended

 

Nine Months Ended

 

 

 

September 30,

 

September 30,

 

 

    

2016

    

2015

    

2016

    

2015

 

Numerator:

 

 

 

 

 

 

 

 

 

 

 

 

 

Net income (loss)

 

$
1,777

 

$
1,191

 

$
8,940

 

$
(999)

 

Denominator:

 

 

 

 

 

 

 

 

 

 

 

 

 

Weighted average common stock outstanding for basic net income (loss) per common share

 

 
23,424

 

 
24,129

 

 
23,307

 

 
24,260

 

Effect of dilutive securities—stock options and restricted stock units

 

 
1,106

 

 
727

 

 
842

 

 

 —

 

Weighted average common shares and dilutive securities outstanding

 

 
24,530

 

 
24,856

 

 
24,149

 

 
24,260

 

 

Schedule of anti-dilutive weighted-average common stock equivalents excluded from the calculation of diluted net loss per share

The following weighted-average common stock equivalents were anti-dilutive and therefore were excluded from the calculation of diluted net income (loss) per share (in thousands):

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Three Months Ended

 

Nine Months Ended

 

 

 

September 30,

 

September 30,

 

 

    

2016

 

2015

    

2016

 

2015

 

Options to purchase common stock

 
2,221

 
2,687

 
2,490

 
4,796

 

Restricted stock units

 

 —

 

 —

 
23

 
87

 

Total

 
2,221

 
2,687

 
2,513

 
4,883