Note 1 - Summary of Business and Significant Accounting Policies - Property and Equipment, Net (Details) - USD ($) $ in Thousands	Jan. 31, 2021	Jan. 31, 2020	Jan. 31, 2019
Property and Equipment, Gross	$ 68,194	$ 67,548	$ 68,794
Less accumulated depreciation and amortization	(42,596)	(38,861)	$ (39,173)
Property and Equipment, Net	25,598	28,687
Building and Building Improvements [Member]
Property and Equipment, Gross	29,562	29,902
Computer Equipment and Software [Member]
Property and Equipment, Gross	18,858	18,345
Furniture and Office Equipment [Member]
Property and Equipment, Gross	8,174	8,004
Leasehold Improvements [Member]
Property and Equipment, Gross	7,685	7,382
Land [Member]
Property and Equipment, Gross	3,850	3,850
Automobiles [Member]
Property and Equipment, Gross	$ 65	$ 65

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

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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.

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