Description of Business and Summary of Significant Accounting Policies (Tables)
 3 Months Ended
Mar. 31, 2014
Description of Business and Summary of Significant Accounting Policies  
Schedule of revenue from U.S., Canadian and all other international dealers and distributors combined

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

 

 

 

Three Months Ended
March 31,

 

 

 

2013

 

2014

 

Revenue-United States

 

$

17,702

 

$

21,547

 

Revenue-Canada

 

3,345

 

3,239

 

Revenue-all other international sources

 

5,524

 

7,069

 

Total revenue

 

$

26,571

 

$

31,855

 

 

 

 

 

 

 

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

 

21

%

22

%
Schedule of changes in the product warranty liability

The following table presents the changes in the product warranty liability (in thousands):

 

 

 

Warranty Liability

 

Balance at December 31, 2013

 

$

1,213

 

Warranty costs accrued

 

204

 

Warranty claims

 

(268

)

Balance at March 31, 2014

 

$

1,149

 
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 loss per share (in thousands):

 

 

 

Three Months Ended

 

 

 

March 31,

 

 

 

2013

 

2014

 

Numerator:

 

 

 

 

 

Net loss

 

$

(1,471

)

$

(539

)

Denominator:

 

 

 

 

 

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

 

2,502

 

23,117

 

Effect of dilutive securities—stock options, convertible preferred stock, and warrants to purchase common stock and preferred stock

 

—

 

—

 

Weighted average common shares and dilutive securities outstanding

 

2,502

 

23,117

 
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 loss per share (in thousands):

 

 

 

Three Months Ended

 

 

 

March 31,

 

 

 

2013

 

2014

 

Convertible preferred stock

 

15,294

 

—

 

Options to purchase common stock

 

4,629

 

4,853

 

Warrants to purchase common stock

 

541

 

—

 

Warrants to purchase preferred stock

 

194

 

—

 

Total

 

20,658

 

4,853