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Quarterly Results of Operations (Unaudited) | 12 Months Ended
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Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract] |
Quarterly Results of Operations (Unaudited) | 13. Quarterly Results of Operations (Unaudited) The following tables set forth our unaudited results of operations for each of the quarters in 2019 and 2018.
|  | Year 2019 Quarters Ended |
(in thousands, except per share data) |  | March 31 |  |  | June 30 |  |  | September 30 |  |  | December 31 |
Revenues, net |  | $ | 12,467 |  |  | $ | 13,164 |  |  | $ | 13,660 |  |  | $ | 14,688 |
Gross profit |  |  | 10,867 |  |  |  | 11,379 |  |  |  | 11,859 |  |  |  | 12,763 |
Gross margin |  |  | 87.2 | % |  |  | 86.4 | % |  |  | 86.8 | % |  |  | 86.9 | %
Loss from operations |  |  | (6,448 | ) |  |  | (4,287 | ) |  |  | (3,900 | ) |  |  | (2,569 | )
Net loss |  |  | (6,726 | ) |  |  | (4,468 | ) |  |  | (4,144 | ) |  |  | (2,812 | )
Basic and diluted net loss per share |  | $ | (0.38 | ) |  | $ | (0.25 | ) |  | $ | (0.23 | ) |  | $ | (0.15 | )
Weighted average shares outstanding - basic and diluted |  |  | 17,890 |  |  |  | 17,944 |  |  |  | 18,375 |  |  |  | 18,402 |
|  | Year 2018 Quarters Ended |
(in thousands, except per share data) |  | March 31 |  |  | June 30 |  |  | September 30 |  |  | December 31 |
Revenues, net |  | $ | 9,138 |  |  | $ | 10,000 |  |  | $ | 10,942 |  |  | $ | 11,917 |
Gross profit |  |  | 7,957 |  |  |  | 8,710 |  |  |  | 9,556 |  |  |  | 10,422 |
Gross margin |  |  | 87.1 | % |  |  | 87.1 | % |  |  | 87.3 | % |  |  | 87.5 | %
Loss from operations |  |  | (7,971 | ) |  |  | (6,591 | ) |  |  | (10,516 | ) |  |  | (11,334 | )
Net loss |  |  | (6,035 | ) |  |  | (6,349 | ) |  |  | (10,329 | ) |  |  | (11,080 | )
Basic and diluted net loss per share |  | $ | (0.39 | ) |  | $ | (0.36 | ) |  | $ | (0.58 | ) |  | $ | (0.62 | )
Weighted average shares outstanding - basic and diluted |  |  | 15,364 |  |  |  | 17,890 |  |  |  | 17,890 |  |  |  | 17,890 |

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- Definition The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -URI http://asc.fasb.org/topic&trid=2126967 + Details
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