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SELECTED QUARTERLY FINANCIAL DATA (Tables) | 12 Months Ended
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Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract] |
Schedule of summarized quarterly financial data | Summarized quarterly financial data for fiscal years 2018 and 2017 is as follows:
|  | 2018 Quarter |
(In thousands, except per share) |  |  | 1st |  |  |  | 2nd |  |  |  | 3rd |  |  |  | 4th |
Revenues |  | $ | 3,773 |  |  | $ | 3,763 |  |  | $ | 3,474 |  |  | $ | 5,089 |
Gross profit |  | $ | 3,139 |  |  | $ | 3,309 |  |  | $ | 2,775 |  |  | $ | 4,139 |
Net loss |  | $ | (24,402 | ) |  | $ | (33,219 | ) |  | $ | (35,605 | ) |  | $ | (39,391 | )
Loss per common share, basic and diluted |  | $ | (0.11 | ) |  | $ | (0.15 | ) |  | $ | (0.16 | ) |  | $ | (0.17 | )
|  | 2017 Quarter |
(In thousands, except per share) |  |  | 1st |  |  |  | 2nd |  |  |  | 3rd |  |  |  | 4th |
Revenues |  | $ | 3,985 |  |  | $ | 4,250 |  |  | $ | 4,418 |  |  | $ | 4,125 |
Gross profit |  | $ | 3,326 |  |  | $ | 3,568 |  |  | $ | 3,717 |  |  | $ | 3,530 |
Net loss |  | $ | (21,156 | ) |  | $ | (19,677 | ) |  | $ | (14,665 | ) |  | $ | (21,427 | )
Loss per common share, basic and diluted |  | $ | (0.11 | ) |  | $ | (0.10 | ) |  | $ | (0.07 | ) |  | $ | (0.10 | )

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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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