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Note 13 - Net Loss Per Share Attributable to Sterling Common Stockholders (Tables) | 12 Months Ended
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Dec. 31, 2016
Notes Tables |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Years Ended December 31,
|  | 2016 |  | 2015 |  | 2014
Numerator: |  |  |  |  |  |
Net loss attributable to Sterling common stockholders before noncontrolling interest revaluation |  | $ | (9,238 | ) |  | $ | (20,402 | ) |  | $ | (9,781 | )
Revaluation of a noncontrolling interest due to a new agreement |  |  | -- |  |  |  | (18,774 | ) |  |  | -- |
|  | $ | (9,238 | ) |  | $ | (39,176 | ) |  | $ | (9,781 | )
Denominator: |  |  |  |  |  |  |  |  |  |  |  |
Weighted average common shares outstanding — basic |  |  | 23,140 |  |  |  | 19,375 |  |  |  | 18,063 |
Shares for dilutive unvested stock |  |  | -- |  |  |  | -- |  |  |  | -- |
Weighted average common shares outstanding and assumed conversions— diluted |  |  | 23,140 |  |  |  | 19,375 |  |  |  | 18,063 |
Basic and diluted net loss per share attributable to Sterling common stockholders |  | $ | (0.40 | ) |  | $ | (2.02 | ) |  | $ | (0.54 | )

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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