2. Basis of Presentation and Significant Accounting Policies: Revenue Recognition Policy: Disaggregation of Revenue (Tables)

9 Months Ended

Jul. 31, 2021

Customer

Disaggregation of Revenue

Revenue by type of customer:	Three Months Ended July 31, 2021	Three Months Ended July 31, 2020	Nine Months Ended July 31, 2021	Nine Months Ended July 31, 2020
Airlines	$ 149,000	$ 748,000	$ 660,000	$ 5,042,000
Airports	1,215,000	1,331,000	3,695,000	4,185,000
Other	146,000	129,000	315,000	385,000
Total Revenue	$ 1,510,000	$ 2,208,000	$ 4,670,000	$ 9,612,000

Performance Obligation

Disaggregation of Revenue

Revenue by type of performance obligation:	Three Months Ended July 31, 2021	Three Months Ended July 31, 2020	Nine Months Ended July 31, 2021	Nine Months Ended July 31, 2020
Subscription services	$ 1,340,000	$ 2,039,000	$ 4,279,000	$ 9,073,000
Professional services	170,000	169,000	391,000	539,000
Total Revenue	$ 1,510,000	$ 2,208,000	$ 4,670,000	$ 9,612,000