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Quarterly Consolidated Financial Data (Unaudited) | 12 Months Ended
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Dec. 31, 2018
Quarterly Consolidated Financial Data (Unaudited) |
Quarterly Consolidated Financial Data (Unaudited) | 19. Quarterly Consolidated Financial Data (unaudited and in thousands, except per share data)
|  | Quarter Ended |
|  | March 31, |  | June 30, |  | September 30, |  | December 31, |
Year ended December 31, 2018: |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  | $ | 49,880 |  | $ | 36,158 |  | $ | 40,448 |  | $ | 27,670 |
Loss from operations |  | $ | (1,640) |  | $ | (6,291) |  | $ | (5,234) |  | $ | (11,862) |
Net loss |  | $ | (1,709) |  | $ | (5,711) |  | $ | (5,171) |  | $ | (11,816) |
Basic loss per share of common stock |  | $ | (0.07) |  | $ | (0.25) |  | $ | (0.23) |  | $ | (0.51) |
Diluted loss per share of common stock |  | $ | (0.07) |  | $ | (0.25) |  | $ | (0.23) |  | $ | (0.51) |
|  | (as adjusted) |  | (as adjusted) |  | (as adjusted) |  | (as adjusted) |
Year ended December 31, 2017: |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  | $ | 42,366 |  | $ | 31,640 |  | $ | 45,108 |  | $ | 37,418 |
Loss from operations |  | $ | (12,139) |  | $ | (15,504) |  | $ | (4,299) |  | $ | (6,022) |
Net loss |  | $ | (9,152) |  | $ | (14,928) |  | $ | (2,922) |  | $ | (4,788) |
Basic loss per share of common stock |  | $ | (0.40) |  | $ | (0.66) |  | $ | (0.13) |  | $ | (0.21) |
Diluted loss per share of common stock |  | $ | (0.40) |  | $ | (0.66) |  | $ | (0.13) |  | $ | (0.21) |
Basic and diluted loss per share of common stock are computed independently for each of the quarters presented. Therefore, the sum of quarterly basic and diluted information may not equal the annual basic and diluted loss per share of common stock.

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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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