1. Description of Business and Significant Accounting Policies: PASSUR Network (Policies)	12 Months Ended
Oct. 31, 2018
Policies
PASSUR Network	PASSUR Network The PASSUR Network is comprised of PASSUR and SMLAT Systems, which include the direct production, shipping, and installation costs incurred for each PASSUR and SMLAT System, which are recorded at cost, net of accumulated depreciation. Depreciation is charged to cost of revenues and is recorded using the straight-line method over the estimated useful life of the asset, which is estimated at five years for SMLAT Systems and seven years for PASSUR Systems. PASSUR and SMLAT Systems which are not installed, raw materials, work-in-process, and finished goods components are carried at cost and not depreciated until installed.

1. Description of Business and Significant Accounting Policies: PASSUR Network (Policies)

12 Months Ended

Oct. 31, 2018

PASSUR Network

The PASSUR Network is comprised of PASSUR and SMLAT Systems, which include the direct production, shipping, and installation costs incurred for each PASSUR and SMLAT System, which are recorded at cost, net of accumulated depreciation. Depreciation is charged to cost of revenues and is recorded using the straight-line method over the estimated useful life of the asset, which is estimated at five years for SMLAT Systems and seven years for PASSUR Systems. PASSUR and SMLAT Systems which are not installed, raw materials, work-in-process, and finished goods components are carried at cost and not depreciated until installed.