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Selected Quarterly Financial Data (Tables) | 12 Months Ended
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Dec. 31, 2017
Selected Quarterly Financial Data [Abstract] |
Schedule of Quarterly Financial Information |
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﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | For the Three Months Ended
﻿ |  | March 31, |  | June 30, |  | September 30, |  | December 31,
﻿ |  | 2017 |  | 2016 |  | 2017 |  | 2016 |  | 2017 |  | 2016 |  | 2017 |  | 2016
﻿Operating Results: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Revenue |  | $ | 41,273 |  | $ | 35,940 |  | $ | 45,231 |  | $ | 39,672 |  | $ | 42,150 |  | $ | 38,340 |  | $ | 46,062 |  | $ | 41,157
﻿Gross profit |  |  | 30,008 |  |  | 25,914 |  |  | 32,554 |  |  | 28,818 |  |  | 30,918 |  |  | 27,472 |  |  | 32,683 |  |  | 28,897
﻿Loss from operations |  |  | (9,642) |  |  | (9,419) |  |  | (6,355) |  |  | (7,738) |  |  | (6,847) |  |  | (6,286) |  |  | (2,135) |  |  | (7,695)
﻿Net loss |  |  | (10,183) |  |  | (9,724) |  |  | (6,883) |  |  | (8,206) |  |  | (7,246) |  |  | (6,783) |  |  | (2,580) |  |  | (8,625)
﻿Net loss per share (basic and diluted) |  | $ | (0.32) |  | $ | (0.31) |  | $ | (0.21) |  | $ | (0.26) |  | $ | (0.22) |  | $ | (0.21) |  | $ | (0.08) |  | $ | (0.27)
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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/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a)-(j) -URI http://asc.fasb.org/extlink&oid=84173487&loc=d3e1280-108306 + Details
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