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Note 20 - Quarterly Financial Information (Tables) | 12 Months Ended
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Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract] |
Schedule of Quarterly Financial Information [Table Text Block] |
|  | 2014 Quarters Ended (unaudited) |  |  |  |
|  | March 31 |  |  | June 30 |  |  | September 30 |  |  | December 31 |  |  | Total |
Revenues |  | $ | 134,538 |  |  | $ | 194,806 |  |  | $ | 189,275 |  |  | $ | 153,611 |  |  | $ | 672,230 |
Gross profit |  |  | 7,869 |  |  |  | 12,499 |  |  |  | 8,356 |  |  |  | 3,697 |  |  |  | 32,421 |
Income (loss) before income taxes and earnings attributable to noncontrolling interests |  |  | 480 |  |  |  | 2,473 |  |  |  | (1,671 | ) |  |  | (5,875 | ) |  |  | (4,593 | )
Net income (loss) attributable to Sterling common stockholders |  |  | 205 |  |  |  | 1,200 |  |  |  | (3,935 | ) |  |  | (7,251 | ) |  |  | (9,781 | )
Net income (loss) per share attributable to Sterling common stockholders: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 0.01 |  |  | $ | 0.07 |  |  | $ | (0.21 | ) |  | $ | (0.39 | ) |  | $ | (0.54 | )
Diluted |  |  | 0.01 |  |  |  | 0.07 |  |  |  | (0.21 | ) |  |  | (0.39 | ) |  |  | (0.54 | )
|  | 2013 Quarters Ended (unaudited) |  |  |  |
|  | March 31 |  |  | June 30 |  |  | September 30 |  |  | December 31 |  |  | Total |
Revenues |  | $ | 111,035 |  |  | $ | 133,350 |  |  | $ | 185,935 |  |  | $ | 125,916 |  |  | $ | 556,236 |
Gross profit (loss) |  |  | 1,385 |  |  |  | (16,635 | ) |  |  | 8,359 |  |  |  | (23,053 | ) |  |  | (29,944 | )
Income (loss) before income taxes and earnings attributable to noncontrolling interests |  |  | (7,219 | ) |  |  | (25,967 | ) |  |  | 1,715 |  |  |  | (37,333 | ) |  |  | (68,804 | )
Net loss attributable to Sterling common stockholders |  |  | (4,580 | ) |  |  | (17,025 | ) |  |  | (189 | ) |  |  | (52,135 | ) |  |  | (73,929 | )
Net loss per share attributable to Sterling common stockholders: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | (0.39 | ) |  | $ | (0.93 | ) |  | $ | (0.06 | ) |  | $ | (3.52 | ) |  | $ | (4.91 | )
Diluted |  |  | (0.39 | ) |  |  | (0.93 | ) |  |  | (0.06 | ) |  |  | (3.52 | ) |  |  | (4.91 | )

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- Definition Tabular disclosure of the quarterly financial data in the annual financial statements. The disclosure includes financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income (loss) before extraordinary items and 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=35737889&loc=d3e1280-108306 + Details
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