1 3 . Segment reporting: (a) We are organized and managed based on two operating segments which are differentiated primarily by their services, the markets they serve and the regulatory environments in which they operate and are described as follows: 1. Network Access Services - This segment derives revenue from the sale of mobile phones, telephony services, high speed Internet access, billing solutions to individuals and small businesses primarily through the Ting website. Revenues are generated in the U.S. 2. Domain Services  This segment includes wholesale and retail domain name registration services, value added services and portfolio services. The Company primarily earns revenues from the registration fees charged to resellers in connection with new, renewed and transferred domain name registrations; the sale of retail Internet domain name registration and email services to individuals and small businesses; and by making its portfolio of domain names available for sale or lease. Domain Services revenues are attributed to the country in which the contract originates, primarily Canada and the U.S. The Chief Executive Officer (the CEO) is the chief operating decision maker and regularly reviews the operations and performance by segment. The CEO reviews gross profit as (a) a key measure of performance for each segment and (b) to make decisions about the allocation of resources. Sales and marketing expenses, technical operations and development expenses, general and administrative expenses, depreciation of property and equipment, amortization of intangibles assets, impairment of indefinite life intangible assets, gain on currency forward contracts and other expense net are organized along functional lines and are not included in the measurement of segment profitability. Total assets and total liabilities are centrally managed and are not reviewed at the segment level by the CEO. The Company follows the same accounting policies for the segments as those described in Notes 2  Basis of presentation, 3  Recent accounting pronouncements, and 10 - Revenue. Information by operating segments (with the exception of disaggregated revenue, which is discussed in Note 10 - Revenue), which is regularly reported to the CEO is as follows (Dollar amounts in thousands of U.S. dollars): Three months ended September 30, 2019 Network Access Services Domain Services Consolidated Totals Net Revenues $ 24,612 $ 63,517 $ 88,129 Cost of revenues Cost of revenues 12,107 43,649 55,756 Network expenses 515 1,739 2,254 Depreciation of property and equipment 1,797 434 2,231 Amortization of intangible assets 12 302 314 Total cost of revenues 14,431 46,124 60,555 Gross Profit 27,574 Expenses: Sales and marketing 8,769 Technical operations and development 2,876 General and administrative 4,574 Depreciation of property and equipment 117 Loss on disposition of property and equipment 73 Amortization of intangible assets 2,544 Loss (gain) on currency forward contracts 20 Income from operations 8,601 Other income (expenses), net (1,263 ) Income before provisions for income taxes $ 7,338 Three months ended September 30, 2018 Network Access Services Domain Services Consolidated Totals Net Revenues $ 24,579 $ 58,940 $ 83,519 Cost of revenues Cost of revenues 12,271 42,834 55,105 Network expenses 479 1,836 2,315 Depreciation of property and equipment 1,026 313 1,339 Amortization of intangible assets 11 488 499 Total cost of revenues 13,787 45,471 59,258 Gross Profit 10,792 13,469 24,261 Expenses: Sales and marketing 8,412 Technical operations and development 2,207 General and administrative 4,120 Depreciation of property and equipment 106 Loss on disposition of property and equipment - Amortization of intangible assets 1,797 Loss (gain) on currency forward contracts (27 ) Income from operations 7,646 Other income (expenses), net (930 ) Income before provisions for income taxes $ 6,716 Nine months ended September 30, 2019 Network Access Services Domain Services Consolidated Totals Net Revenues $ 71,493 $ 179,706 $ 251,199 Cost of revenues Cost of revenues 35,681 126,880 162,561 Network expenses 1,552 5,482 7,034 Depreciation of property and equipment 4,907 1,163 6,070 Amortization of intangible assets 34 768 802 Total cost of revenues 42,174 134,293 176,467 Gross Profit 29,319 45,413 74,732 Expenses: Sales and marketing 26,366 Technical operations and development 8,151 General and administrative 13,818 Depreciation of property and equipment 375 Loss on disposition of property and equipment 73 Amortization of intangible assets 6,661 Loss (gain) on currency forward contracts (90 ) Income from operations 19,378 Other income (expenses), net (3,549 ) Income before provisions for income taxes $ 15,829 Nine months ended September 30, 2018 Network Access Services Domain Services Consolidated Totals Net Revenues $ 72,493 $ 187,908 $ 260,401 Cost of revenues Cost of revenues 37,746 140,832 178,578 Network expenses 1,609 5,981 7,590 Depreciation of property and equipment 2,762 935 3,697 Amortization of intangible assets 34 1,463 1,497 Total cost of revenues 42,151 149,211 191,362 Gross Profit 30,342 38,697 69,039 Expenses: Sales and marketing 24,629 Technical operations and development 6,657 General and administrative 12,906 Depreciation of property and equipment 309 Loss on disposition of property and equipment - Amortization of intangible assets 5,456 Loss (gain) on currency forward contracts 22 Income from operations 19,060 Other income (expenses), net (2,580 ) Income before provisions for income taxes $ 16,480 (b) The following is a summary of the Companys property and equipment by geographic region ( Dollar amounts in thousands of U.S. dollars ): Property and Equipment by region September 30, 2019 December 31, 2018 Canada $ 2,164 $ 1,393 United States 69,586 46,631 Germany 417 41 $ 72,167 $ 48,065 (c) The following is a summary of the Companys amortizable intangible assets by geographic region (Dollar amounts in thousands of U.S. dollars): Amortizable assets by region September 30, 2019 December 31, 2018 Canada $ 5,548 $ 6,553 United States 42,169 30,421 $ 47,717 $ 36,974 (d) Valuation and qualifying accounts (Dollar amounts in thousands of U.S. dollars): Allowance for doubtful accounts Balance at beginning of period Charged to costs and expenses Write-offs during period Balance at end of period Nine months ended September 30, 2019 $ 132 $ (2 ) $ - $ 130 Year ended December 31, 2018 $ 168 $ (36 ) $ - $ 132