Quarterly report pursuant to Section 13 or 15(d)

Statements of Comprehensive Income

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Statements of Comprehensive Income - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Revenue        
Sales revenue $ 47,177 $ 29,248 $ 125,566 $ 84,682
Rental revenue 7,245 11,530 26,412 33,877
Total revenue 54,422 40,778 151,978 118,559
Cost of revenue        
Cost of sales revenue 24,271 16,046 63,824 46,501
Cost of rental revenue, including depreciation of $2,878 and $3,029 for the three months ended and $8,733 and $8,929 for the nine months ended, respectively 5,023 5,357 15,532 15,838
Total cost of revenue 29,294 21,403 79,356 62,339
Gross profit        
Gross profit-sales revenue 22,906 13,202 61,742 38,181
Gross profit-rental revenue 2,222 6,173 10,880 18,039
Total gross profit 25,128 19,375 72,622 56,220
Operating expense        
Research and development 1,350 1,116 3,897 2,954
Sales and marketing 9,679 8,132 28,220 22,623
General and administrative 8,702 6,413 23,812 19,066
Total operating expense 19,731 15,661 55,929 44,643
Income from operations 5,397 3,714 16,693 11,577
Other income (expense)        
Interest expense (1) (5) (6) (18)
Interest income 61 28 126 66
Other income (expense) (8) (59) 78 (215)
Total other income (expense), net 52 (36) 198 (167)
Income before provision for income taxes 5,449 3,678 16,891 11,410
Provision for income taxes 1,994 982 5,929 3,683
Net income 3,455 2,696 10,962 7,727
Other comprehensive income, net of tax        
Unrealized gain (loss) on foreign currency hedging during the period 10   (24)  
Add: reclassification adjustment for losses included in net income 2   51  
Total unrealized gain on foreign currency hedging 12   27  
Unrealized gain (loss) on available-for-sale investments during the period (4)   16  
Total other comprehensive income, net of tax 8   43  
Comprehensive income $ 3,463 $ 2,696 $ 11,005 $ 7,727
Basic net income per share attributable to common stockholders (Note 5) $ 0.17 $ 0.14 $ 0.55 $ 0.40
Diluted net income per share attributable to common stockholders (Note 5) $ 0.16 $ 0.13 $ 0.52 $ 0.37
Weighted-average number of shares used in calculating net income per share attributable to common stockholders:        
Basic common shares 20,157,688 19,428,653 19,986,544 19,303,057
Diluted common shares 21,100,725 20,783,550 20,924,022 20,690,499