2. Basis of Presentation and Significant Accounting Policies: Cost of Revenues (Policies)	6 Months Ended
Apr. 30, 2018
Policies
Cost of Revenues	Cost of Revenues Costs associated with subscription and maintenance revenues consist primarily of direct labor, depreciation of PASSUR and Surface Multilateration (“SMLAT”) Network Systems, amortization of capitalized software development costs, communication costs, data feeds, travel and entertainment, and consulting fees. Also, included in cost of revenues are costs associated with upgrades to PASSUR and SMLAT Systems necessary to make such systems compatible with new software applications, as well as the ordinary repair and maintenance of existing PASSUR and SMLAT Systems. Additionally, cost of revenues in each reporting period are impacted by: (1) the number of PASSUR and SMLAT Systems added to the PASSUR Network, which includes the cost of production, shipment, and installation of these assets, which are capitalized to the PASSUR Network; and (2) new capitalized costs associated with software development projects. Both of these are referred to as “Capitalized Assets” and are depreciated and/or amortized over their respective useful lives and charged to cost of revenues.

Disclosure of accounting policy for recognition of costs in the period which correspond to the sales and revenue categories presented in the statement of operations. The accounting policy may include the amount and nature of costs incurred, provisions associated with inventories, purchase discounts, freight and other costs included in cost of sales incurred and recorded in the period. This disclosure also includes the nature of costs of sales incurred and recorded in the statement of operations for the period relating to transactions with related parties.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.2)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 605
-SubTopic 50
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=68069731&loc=d3e63676-111659

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790

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