Quarterly report pursuant to Section 13 or 15(d)

Consolidated Statements of Comprehensive Income (Unaudited)

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Consolidated Statements of Comprehensive Income (Unaudited) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Revenue        
Sales revenue $ 63,137 $ 47,177 $ 167,141 $ 125,566
Rental revenue 5,893 7,245 18,510 26,412
Total revenue 69,030 54,422 185,651 151,978
Cost of revenue        
Cost of sales revenue 31,401 24,271 81,307 63,824
Cost of rental revenue, including depreciation of $2,366 and $2,878 for the three months ended and $7,577 and $8,733 for the nine months ended, respectively 4,459 5,023 13,863 15,532
Total cost of revenue 35,860 29,294 95,170 79,356
Gross profit        
Gross profit-sales revenue 31,736 22,906 85,834 61,742
Gross profit-rental revenue 1,434 2,222 4,647 10,880
Total gross profit 33,170 25,128 90,481 72,622
Operating expense        
Research and development 1,375 1,350 3,944 3,897
Sales and marketing 13,095 9,679 35,569 28,220
General and administrative 10,368 8,702 28,568 23,812
Total operating expense 24,838 19,731 68,081 55,929
Income from operations 8,332 5,397 22,400 16,693
Other income (expense)        
Interest expense   (1)   (6)
Interest income 221 61 468 126
Other income (expense) 264 (8) 994 78
Total other income, net 485 52 1,462 198
Income before provision for income taxes 8,817 5,449 23,862 16,891
Provision for income taxes 1,479 203 2,254 1,632
Net income 7,338 5,246 21,608 15,259
Other comprehensive income (loss), net of tax        
Change in foreign currency translation adjustment 115   312  
Change in net unrealized gains (losses) on foreign currency hedging (196) 10 (442) (24)
Less: reclassification adjustment for net (gains) losses included in net income 305 2 297 51
Total net change in unrealized gains (losses) on foreign currency hedging 109 12 (145) 27
Change in net unrealized gains (losses) on available-for-sale investments 13 (4) 71 16
Total other comprehensive income, net of tax 237 8 238 43
Comprehensive income $ 7,575 $ 5,254 $ 21,846 $ 15,302
Basic net income per share attributable to common stockholders (Note 5) $ 0.35 $ 0.26 $ 1.05 $ 0.76
Diluted net income per share attributable to common stockholders (Note 5) $ 0.33 $ 0.25 $ 0.99 $ 0.73
Weighted-average number of shares used in calculating net income per share attributable to common stockholders:        
Basic common shares 20,753,789 20,157,688 20,622,848 19,986,544
Diluted common shares 21,998,660 21,182,587 21,832,544 21,000,945