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Note 18 - Quarterly Financial Information (Tables) | 12 Months Ended
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Dec. 31, 2016
Notes Tables |
Quarterly Financial Information [Table Text Block] |
|  | 2016 Quarters Ended (unaudited) |  |
|  | March 31 |  | June 30 |  | September 30 |  | December 31 |  | Total
Revenues |  | $ | 126,567 |  |  | $ | 189,582 |  |  | $ | 205,629 |  |  | $ | 168,345 |  |  | $ | 690,123 |
Gross profit |  |  | 3,830 |  |  |  | 16,089 |  |  |  | 17,032 |  |  |  | 6,903 |  |  |  | 43,854 |
Income (loss) before income taxes and earnings attributable to noncontrolling interests |  |  | (7,336 | ) |  |  | 2,570 |  |  |  | 3,196 |  |  |  | (5,754 | ) |  |  | (7,324 | )
Net income (loss) attributable to Sterling common stockholders |  |  | (7,328 | ) |  |  | 2,023 |  |  |  | 2,415 |  |  |  | (6,348 | ) |  |  | (9,238 | )
Net income (loss) per share attributable to Sterling common stockholders: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic and diluted |  | $ | (0.37 | ) |  | $ | 0.09 |  |  | $ | 0.10 |  |  | $ | (0.25 | ) |  | $ | (0.40 | )
|  | 2015 Quarters Ended (unaudited) |  |
|  | March 31 |  | June 30 |  | September 30 |  | December 31 |  | Total
Revenues |  | $ | 117,682 |  |  | $ | 177,425 |  |  | $ | 176,000 |  |  | $ | 152,488 |  |  | $ | 623,595 |
Gross profit (loss) |  |  | (6,836 | ) |  |  | 9,111 |  |  |  | 14,458 |  |  |  | 12,220 |  |  |  | 28,953 |
Income (loss) before income taxes and earnings attributable to noncontrolling interests |  |  | (16,697 | ) |  |  | (967 | ) |  |  | 1,326 |  |  |  | (841 | ) |  |  | (17,179 | )
Net income (loss) attributable to Sterling common stockholders |  |  | (16,992 | ) |  |  | (2,542 | ) |  |  | 256 |  |  |  | (19,898 | ) |  |  | (39,176 | )
Net income (loss) per share attributable to Sterling common stockholders: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic and diluted |  | $ | (0.90 | ) |  | $ | (0.13 | ) |  | $ | 0.01 |  |  | $ | (1.01 | ) |  | $ | (2.02 | )

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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=68076893&loc=d3e1280-108306 + Details
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