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Note 7 - Leases (Details Textual) $ in Thousands, ₨ in Millions, $ in Millions |  | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Aug. 05, 2016 USD ($) | Jan. 31, 2020 USD ($) | Jan. 31, 2019 USD ($) | Jan. 31, 2018 USD ($) | Jan. 31, 2020 CAD ($) | Oct. 31, 2019 | Jan. 31, 2018 CAD ($) | Aug. 05, 2016 INR (₨)
Finance Lease, Right-of-Use Asset |  | $ 1,200 |  |  |  |  |  |
Operating Lease, Liability, Total |  | 12,254 |  |  |  |  |  |
Operating Lease, Right-of-Use Asset |  | 11,475 |  |  |  |  |  |
Finance Lease, Liability, Total |  | 1,094 |  |  |  |  |  |
Operating Lease, Expense |  | 2,800 | $ 2,600 |  |  |  |  |
Minimum [Member] |  |  |  |  |  |  |  |
Lessee, Operating Lease, Term of Contract (Year) |  |  |  |  |  | 1 year |  |
Maximum [Member] |  |  |  |  |  |  |  |
Lessee, Operating Lease, Term of Contract (Year) |  |  |  |  |  | 14 years |  |
Finance Vehicle Equipment, One [Member] |  |  |  |  |  |  |  |
Finance Lease, Right-of-Use Asset |  | $ 800 |  | $ 800 | $ 1.1 |  | $ 1.1 |
Interest Rate for Finance Lease |  | 8.00% |  |  |  |  |  |
Finance Lease, Principal Payments and Interest Payment on Liability |  | $ 100 |  |  |  |  |  |
Finance Vehicle Equipment, One [Member] | Minimum [Member] |  |  |  |  |  |  |  |
Interest Rate for Finance Lease |  |  |  | 4.00% |  |  |  |
Finance Vehicle Equipment, One [Member] | Maximum [Member] |  |  |  |  |  |  |  |
Interest Rate for Finance Lease |  |  |  | 7.80% |  |  |  |
Finance Lease, Principal Payments and Interest Payment on Liability |  |  |  | $ 100 |  |  |  |
Finance Vehicle Equipment, Two [Member] |  |  |  |  |  |  |  |
Finance Lease, Right-of-Use Asset | $ 8 |  |  |  |  |  |  | ₨ 0.6
Interest Rate for Finance Lease | 15.60% |  |  |  |  |  |  |
Finance Vehicle Equipment, Two [Member] | Maximum [Member] |  |  |  |  |  |  |  |
Finance Lease, Principal Payments and Interest Payment on Liability | $ 1 |  |  |  |  |  |  |

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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=121609121&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=121603541&loc=SL77918627-209977 + Details
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