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v3.7.0.1

Consolidated Statements Of Operations And Comprehensive Income - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Revenues: |  |  |  |
Products | $ 30,094 | $ 30,045 | $ 57,490 | $ 57,063
Preservation services | 17,724 | 17,038 | 35,387 | 33,036
Total revenues | 47,818 | 47,083 | 92,877 | 90,099
Cost of products and preservation services: |  |  |  |
Products | 6,959 | 7,698 | 14,976 | 14,701
Preservation services | 7,954 | 9,084 | 15,484 | 17,476
Total cost of products and preservation services | 14,913 | 16,782 | 30,460 | 32,177
Gross margin | 32,905 | 30,301 | 62,417 | 57,922
Operating expenses: |  |  |  |
General, administrative, and marketing | 23,389 | 22,436 | 46,260 | 48,710
Research and development | 4,728 | 3,279 | 8,821 | 5,888
Total operating expenses | 28,117 | 25,715 | 55,081 | 54,598
Gain from sale of business components |  |  |  | (7,915)
Operating income | 4,788 | 4,586 | 7,336 | 11,239
Interest expense | 834 | 797 | 1,635 | 1,514
Interest income | (55) | (18) | (95) | (30)
Other income, net | (134) | (58) | (91) | (167)
Income before income taxes | 4,143 | 3,865 | 5,887 | 9,922
Income tax expense | 980 | 1,518 | 501 | 5,034
Net income | $ 3,163 | $ 2,347 | $ 5,386 | $ 4,888
Income per common share: |  |  |  |
Basic | $ 0.09 | $ 0.07 | $ 0.16 | $ 0.15
Diluted | $ 0.09 | $ 0.07 | $ 0.16 | $ 0.15
Weighted-average common shares outstanding: |  |  |  |
Basic | 32,664 | 32,010 | 32,552 | 31,519
Diluted | 33,814 | 32,764 | 33,739 | 32,270
Other comprehensive income (loss) | $ 129 | $ (332) | $ 365 | $ (428)
Comprehensive income | $ 3,292 | $ 2,015 | $ 5,751 | $ 4,460

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