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CONSOLIDATED STATEMENTS OF INCOME - USD ($) | 3 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016
REVENUE: |  |
Material sales | $ 46,637,000 | $ 24,304,000
Royalty and license fees | 7,025,000 | 5,342,000
Contract research services | 1,904,000 | 57,000
Total revenue | 55,566,000 | 29,703,000
COST OF SALES | 12,987,000 | 5,052,000
Gross margin | 42,579,000 | 24,651,000
OPERATING EXPENSES: |  |
Research and development | 11,818,000 | 10,476,000
Selling, general and administrative | 10,077,000 | 6,660,000
Amortization of acquired technology and other intangible assets | 5,492,000 | 2,750,000
Patent costs | 1,547,000 | 1,344,000
Royalty and license expense | 1,587,000 | 875,000
Total operating expenses | 30,521,000 | 22,105,000
OPERATING INCOME | 12,058,000 | 2,546,000
Interest income, net | 671,000 | 324,000
Other (expense) income, net | (19,000) |
Interest and other income, net | 652,000 | 324,000
INCOME BEFORE INCOME TAXES | 12,710,000 | 2,870,000
INCOME TAX EXPENSE | (2,345,000) | (921,000)
NET INCOME | $ 10,365,000 | $ 1,949,000
NET INCOME PER COMMON SHARE: |  |
BASIC | $ 0.22 | $ 0.04
DILUTED | $ 0.22 | $ 0.04
WEIGHTED AVERAGE SHARES USED IN COMPUTING NET INCOME PER COMMON SHARE: |  |
BASIC | 46,661,559 | 46,774,360
DILUTED | 46,742,894 | 46,907,558
CASH DIVIDENDS DECLARED PER COMMON SHARE | $ 0.03 |

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