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v3.7.0.1

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Revenues | $ 690,123 | $ 623,595 | $ 672,230
Cost of revenues | (646,269) | (594,642) | (639,809)
Gross profit | 43,854 | 28,953 | 32,421
General and administrative expenses | (38,623) | (41,880) | (36,897)
Other operating (expense) income, net | (9,960) | (1,460) | 252
Operating loss | (4,729) | (14,387) | (4,224)
Interest income | 33 | 460 | 754
Interest expense | (2,628) | (3,012) | (1,123)
Loss on extinguishment of debt |  | (240) |
Loss before income taxes and earnings attributable to noncontrolling interests | (7,324) | (17,179) | (4,593)
Income tax expense | (88) | (7) | (632)
Net loss | (7,412) | (17,186) | (5,225)
Noncontrolling owners’ interests in earnings of subsidiaries and joint ventures | (1,826) | (3,216) | (4,556)
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) |
Net loss attributable to Sterling common stockholders | $ (9,238) | $ (39,176) | $ (9,781)
Net loss per share attributable to Sterling common stockholders: |  |  |
Basic and diluted (in dollars per share) | $ (0.40) | $ (2.02) | $ (0.54)
Weighted average number of common shares outstanding used in computing per share amounts: |  |  |
Basic and diluted (in shares) | 23,140 | 19,375 | 18,064

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