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Quarterly Results of Operations (unaudited) (Tables) | 12 Months Ended
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Dec. 31, 2019
Quarterly Results of Operations (unaudited) |
Schedule of quarterly results of operations |
|  | Dec. 31, |  | Sept. 30, |  | June 30, |  | March 31, |  | Dec. 31, |  | Sept. 30, |  | June 30, |  | March 31, |
|  | 2019 |  | 2019 |  | 2019 |  | 2019 |  | 2018 |  | 2018 |  | 2018 |  | 2018 |
|  | (in thousands, except per share data) |
Revenue |  | $ | 107,723 |  | $ | 69,453 |  | $ | 74,305 |  | $ | 91,477 |  | $ | 105,683 |  | $ | 95,374 |  | $ | 119,333 |  | $ | 122,185 |
Gross profit |  |  | 44,316 |  |  | 30,581 |  |  | 31,749 |  |  | 37,506 |  |  | 43,567 |  |  | 39,913 |  |  | 49,000 |  |  | 47,156 |
Net income |  |  | 9,712 |  |  | 704 |  |  | 556 |  |  | 6,062 |  |  | 8,463 |  |  | 8,838 |  |  | 14,669 |  |  | 13,915 |
Net income per basic share |  | $ | 0.30 |  | $ | 0.02 |  | $ | 0.02 |  | $ | 0.19 |  | $ | 0.26 |  | $ | 0.27 |  | $ | 0.46 |  | $ | 0.43 |
Net income per diluted share |  | $ | 0.29 |  | $ | 0.02 |  | $ | 0.02 |  | $ | 0.18 |  | $ | 0.25 |  | $ | 0.26 |  | $ | 0.43 |  | $ | 0.41 |

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- Definition Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=109225645&loc=d3e1280-108306 + Details
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