Note 7 - Leases - Supplemental Cash Flow Information Related to Leases (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | |
|---|---|---|---|
Jan. 31, 2020 |
Jan. 31, 2020 |
Jan. 31, 2019 |
|
| Financing cash flows from finance leases | $ 287 | $ 250 | |
| Operating cash flows from finance leases | 58 | ||
| Operating cash flows from operating leases | $ 2,287 | ||
| Finance leases liabilities | |||
| Operating leases liabilities | $ 94 | ||