Description of Business and Summary of Significant Accounting Policies (Tables)
 9 Months Ended
Sep. 30, 2017
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,

 

 

 

    

2017

    

2016

    

2017

    

2016

 

 

Revenue-United States

 

$

44,839

 

$

39,670

 

$

122,993

 

$

108,506

 

 

Revenue-Canada

 

 

5,403

 

 

4,246

 

 

14,911

 

 

11,355

 

 

Revenue-all other international sources

 

 

14,500

 

 

11,269

 

 

38,482

 

 

31,574

 

 

Total revenue

 

$

64,742

 

$

55,185

 

$

176,386

 

$

151,435

 

 

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

 

 
22

%  

 
20

%  

 
22

%  

 
21

%  

 

 

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, 2017 (in thousands):

 

 

 

 

 

 

 

    

Warranty Liability

 

Balance at December 31, 2016

 

$

1,945

 

Warranty costs accrued

 

 

2,854

 

Warranty claims

 

 

(2,509)

 

Balance at September 30, 2017

 

$

2,290

 

 

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

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Three Months Ended

 

Nine Months Ended

 

 

 

September 30,

 

September 30,

 

 

    

2017

    

2016

    

2017

    

2016

 

Numerator:

 

 

 

 

 

 

 

 

 

 

 

 

 

Net income

 

$

5,185

 

$

1,777

 

$

9,921

 

$

8,940

 

Denominator:

 

 

 

 

 

 

 

 

 

 

 

 

 

Weighted average common stock outstanding for basic net income per common share

 

 

25,050

 

 

23,424

 

 

24,551

 

 

23,307

 

Effect of dilutive securities—stock options and restricted stock units

 

 

2,072

 

 

1,106

 

 

1,842

 

 

842

 

Weighted average common shares and dilutive securities outstanding

 

 

27,122

 

 

24,530

 

 

26,393

 

 

24,149

 

 

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

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

 

 

 

 

 

 

 

 

 

 

 

 

 

Three Months Ended

 

Nine Months Ended

 

 

 

September 30,

 

September 30,

 

 

    

2017

 

2016

    

2017

 

2016

 

Options to purchase common stock

 

23

 

2,221

 

881

 

2,490

 

Restricted stock units

 

 —

 

 —

 

 6

 

23

 

Total

 

23

 

2,221

 

887

 

2,513