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Note 10 - Leases (Details Textual) $ in Thousands, د.إ in Millions, $ in Millions | 3 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Oct. 31, 2021 USD ($) | Oct. 31, 2020 USD ($) | Oct. 31, 2020 AED (د.إ) | Jan. 31, 2020 USD ($) | Jan. 31, 2018 USD ($) | Jan. 31, 2021 USD ($) | Jan. 31, 2020 CAD ($) | Jan. 31, 2018 CAD ($)
Finance Lease, Right-of-Use Asset, after Accumulated Amortization, Total | $ 800 |  |  |  |  |  |  |
Operating Lease, Liability, Total | 13,013 |  |  |  |  | $ 14,576 |  |
Operating Lease, Right-of-Use Asset | 11,515 |  |  |  |  | 13,384 |  |
Finance Lease, Liability, Total | 634 |  |  |  |  | $ 701 |  |
Operating Lease, Expense | $ 900 | $ 900 |  |  |  |  |  |
Maximum [Member] |  |  |  |  |  |  |  |
Lessee, Operating Lease, Term of Contract (Year) | 30 years |  |  |  |  |  |  |
Minimum [Member] |  |  |  |  |  |  |  |
Lessee, Operating Lease, Term of Contract (Year) | 1 year |  |  |  |  |  |  |
Finance Vehicle Equipment, One [Member] |  |  |  |  |  |  |  |
Finance Lease, Right-of-Use Asset, after Accumulated Amortization, Total |  |  |  | $ 800 | $ 800 |  | $ 1.1 | $ 1.1
Interest Rate for Finance Lease |  |  |  | 8.00% |  |  | 8.00% |
Finance Vehicle Equipment, One [Member] | Maximum [Member] |  |  |  |  |  |  |  |
Interest Rate for Finance Lease |  |  |  |  | 7.80% |  |  | 7.80%
Finance Lease, Principal Payments and Interest Payment on Liability |  |  |  | $ 100 | $ 100 |  |  |
Finance Vehicle Equipment, One [Member] | Minimum [Member] |  |  |  |  |  |  |  |
Interest Rate for Finance Lease |  |  |  |  | 4.00% |  |  | 4.00%
Abu Dhabi Land Lease [Member] |  |  |  |  |  |  |  |
Lessee, Operating Lease, Annual Payment |  | $ 300 | د.إ 1.2 |  |  |  |  |

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- Definition Present value of lessee's discounted obligation for lease payments from finance lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977 + Details
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