11. Concentration Risk Disclosure	12 Months Ended
Oct. 31, 2017
Notes
11. Concentration Risk Disclosure	11. Major Customers The Company’s principal business is to provide predictive analytics and decision support technology for the aviation industry to primarily improve the operational performance and cash flow of airlines. The Company believes it operates in one operating segment. The Company performs ongoing credit evaluations of its customers and generally does not require collateral. Three customers accounted for 52%, or $7,165,000, of total revenues in fiscal year 2017. One customer accounted for 22% or $2,988,000, a second customer accounted for 19% or $2,637,000, and a third customer accounted for 11% or $1,540,000 of total revenues in fiscal year 2017. Three customers accounted for 45%, or $6,698,000, of total revenues in fiscal year 2016. One customer accounted for 17% or $2,555,000, a second customer accounted for 17% or $2,460,000, and a third customer accounted for 11% or $1,683,000 of total revenues in fiscal year 2016. As of October 31, 2017, the Company had three customers each of which accounted for 10% or more of the accounts receivable balance. One customer accounted for 21%, or $309,000, a second customer accounted for 16%, or $242,000, and a third customer accounted for 15%, or $218,000. As of October 31, 2016, the Company had three customers each of which accounted for 10% or more of the accounts receivable balance. One customer accounted for 30%, or $330,000, and a second customer accounted for 21%, or $226,000 and a third customer accounted for 14% or $157,000. Credit losses historically have been immaterial, although, there is one customer with a significant past due accounts receivable balance, which is not one of the major customers described above, which the Company has fully reserved as of the fiscal year ended October 31, 2017. The Company had foreign sales of $320,000 and $206,000 in fiscal years 2017 and 2016, respectively. All sales, including foreign sales, are denominated in U.S. dollars.

11. Concentration Risk Disclosure

12 Months Ended

Oct. 31, 2017

11. Major Customers

The Company’s principal business is to provide predictive analytics and decision support technology for the aviation industry to primarily improve the operational performance and cash flow of airlines. The Company believes it operates in one operating segment. The Company performs ongoing credit evaluations of its customers and generally does not require collateral.

Three customers accounted for 52%, or $7,165,000, of total revenues in fiscal year 2017. One customer accounted for 22% or $2,988,000, a second customer accounted for 19% or $2,637,000, and a third customer accounted for 11% or $1,540,000 of total revenues in fiscal year 2017. Three customers accounted for 45%, or $6,698,000, of total revenues in fiscal year 2016. One customer accounted for 17% or $2,555,000, a second customer accounted for 17% or $2,460,000, and a third customer accounted for 11% or $1,683,000 of total revenues in fiscal year 2016. As of October 31, 2017, the Company had three customers each of which accounted for 10% or more of the accounts receivable balance. One customer accounted for 21%, or $309,000, a second customer accounted for 16%, or $242,000, and a third customer accounted for 15%, or $218,000. As of October 31, 2016, the Company had three customers each of which accounted for 10% or more of the accounts receivable balance. One customer accounted for 30%, or $330,000, and a second customer accounted for 21%, or $226,000 and a third customer accounted for 14% or $157,000. Credit losses historically have been immaterial, although, there is one customer with a significant past due accounts receivable balance, which is not one of the major customers described above, which the Company has fully reserved as of the fiscal year ended October 31, 2017.

The Company had foreign sales of $320,000 and $206,000 in fiscal years 2017 and 2016, respectively. All sales, including foreign sales, are denominated in U.S. dollars.