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
Mar. 31, 2018
Mar. 31, 2017
Revenue    
Sales revenue $ 73,584 $ 45,966
Rental revenue 5,467 6,534
Total revenue 79,051 52,500
Cost of revenue    
Cost of sales revenue 36,948 21,913
Cost of rental revenue, including depreciation of $2,165 and $2,689, respectively 4,376 4,843
Total cost of revenue 41,324 26,756
Gross profit    
Gross profit-sales revenue 36,636 24,053
Gross profit-rental revenue 1,091 1,691
Total gross profit 37,727 25,744
Operating expense    
Research and development 1,416 1,309
Sales and marketing 18,038 10,529
General and administrative 9,573 8,335
Total operating expense 29,027 20,173
Income from operations 8,700 5,571
Other income (expense)    
Interest income 543 101
Other income 444 207
Total other income, net 987 308
Income before benefit for income taxes 9,687 5,879
Benefit for income taxes (1,071) (53)
Net income 10,758 5,932
Other comprehensive income (loss), net of tax    
Change in foreign currency translation adjustment 108  
Change in net unrealized gains (losses) on foreign currency hedging (249) 54
Less: reclassification adjustment for net (gains) losses included in net income 172 (57)
Total net change in unrealized gains (losses) on foreign currency hedging (77) (3)
Change in net unrealized gains (losses) on available-for-sale investments (19) 64
Total other comprehensive income, net of tax 12 61
Comprehensive income $ 10,770 $ 5,993
Basic net income per share attributable to common stockholders (Note 5) $ 0.51 $ 0.29
Diluted net income per share attributable to common stockholders (Note 5) $ 0.48 $ 0.27
Weighted-average number of shares used in calculating net income per share attributable to common stockholders:    
Basic common shares 21,026,154 20,489,532
Diluted common shares 22,295,213 21,579,721