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Quarterly financial data (unaudited)
 12 Months Ended
Dec. 31, 2014
Quarterly financial data (unaudited)  
Quarterly financial data (unaudited)

18. Quarterly financial data (unaudited)

        Summarized unaudited quarterly financial data are as follows:

 

                                                                                                                                                                                    

 

 

2014

 

 

 

March 31

 

June 30

 

September 30

 

December 31

 

Revenue

 

$
26,452

 

$
28,396

 

$
30,822

 

$
33,627

 

Loss from operations

 

$
(5,173

)

$
(3,352

)

$
(3,487

)

$
(6,014

)

Net loss attributable to common stockholders

 

$
(5,448

)

$
(3,734

)

$
(3,815

)

$
(6,524

)

Basic loss per share

 

$
(0.15

)

$
(0.10

)

$
(0.11

)

$
(0.18

)

Diluted loss per share

 

$
(0.15

)

$
(0.10

)

$
(0.11

)

$
(0.18

)

 

                                                                                                                                                                                    

 

 

2013

 

 

 

March 31

 

June 30

 

September 30

 

December 31

 

Revenue

 

$
23,134

 

$
26,239

 

$
28,607

 

$
28,766

 

(Loss) income from operations

 

$
(1,502

)

$
(424

)

$
784

 

$
(752

)

Net (loss) income attributable to common stockholders

 

$
(1,121

)

$
(399

)

$
354

 

$
(2,802

)

Basic (loss) earnings per share

 

$
(0.03

)

$
(0.01

)

$
0.01

 

$
(0.08

)

Diluted (loss) earnings per share

 

$
(0.03

)

$
(0.01

)

$
0.01

 

$
(0.08

)

        Earnings (loss) per share are computed separately for each quarter and the full year using the respective weighted average shares. Therefore, the sum of the quarterly (loss) earnings per share amounts may not equal the annual amounts reported.