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Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Oct. 31, 2018 | Oct. 31, 2017
Consolidated Statements of Operations [Abstract] |  |
Revenues | $ 362,316 | $ 393,555
Costs and expenses: |  |
Direct cost of revenues (exclusive of depreciation and amortization) | 304,693 | 336,510
Selling, general and administrative | 50,552 | 50,071
Depreciation and amortization | 5,594 | 5,673
Severance |  | 439
Total costs and expenses | 360,839 | 392,693
Other operating expense | (195) | (779)
Income from operations | 1,282 | 83
Interest income, net | 108 | 362
Other expense, net | (1,349) | (826)
Income (loss) before income taxes | 41 | (381)
Provision for income taxes | (1,189) | (1,416)
Net loss | (1,148) | (1,797)
Net income attributable to noncontrolling interests | (301) | (295)
Net loss attributable to IDT Corporation | $ (1,449) | $ (2,092)
Basic and diluted loss per share attributable to IDT Corporation common stockholders | $ (0.06) | $ (0.08)
Weighted-average number of shares used in calculation of basic and diluted loss per share | 23,831 | 24,628
(i) Stock-based compensation included in selling, general and administrative expenses | $ 413 | $ 810

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