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Note 8 - Property and Equipment - Property and Equipment (Details) - USD ($) $ in Thousands	Jan. 31, 2021	Jan. 31, 2020
Cost	$ 42,422	$ 38,770
Accumulated amortization	30,333	25,039
Net	12,089	13,731
Computer Equipment [Member]
Cost	37,469	34,442
Accumulated amortization	28,123	23,730
Furniture and Fixtures [Member]
Cost	1,494	1,432
Accumulated amortization	1,081	816
Leasehold Improvements [Member]
Cost	807	778
Accumulated amortization	401	290
Equipment Installed With Customers [Member]
Cost	1,654	1,289
Accumulated amortization	728	203
Asset under Construction [Member]
Cost	$ 998	$ 829

X

- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.14)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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X

- Definition

Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

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- Definition

Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Topic 944
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-Section S99
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