Note 1 - Summary of Business and Significant Accounting Policies (Details Textual) - USD ($)			12 Months Ended
	Feb. 18, 2015	Jan. 22, 2015	Jan. 31, 2017	Jan. 31, 2016	Jan. 31, 2015
Proceeds from Issuance of Common Stock				$ 8,365,000	$ 37,046,000
Foreign Currency Transaction Gain (Loss), before Tax			(200,000)	500,000	900,000
Depreciation, Depletion and Amortization			$ 4,300,000	4,000,000	3,800,000
Capitalized Software Amortization Period			3 years
Write-off of Fully Amortized Software Development Costs			$ 400,000
Capitalized Computer Software, Amortization			1,000,000	1,100,000	1,100,000
Capitalized Software Cost, Amortization Expense, New Twelve Months			628,000
Capitalized Software Cost, Amortization Expense, Year Two			79,000
Capitalized Software Cost, Amortization Expense, Year Three			25,000
Goodwill and Intangible Asset Impairment			0	0	0
Amortization of Intangible Assets			659,000	658,000	706,000
Advertising Expense			$ 1,100,000	$ 900,000	$ 800,000
Class Common Stock to Class B Common Stock Cash or Stock Dividends Payout Ratio			120.00%
Increase in Deferred Tax Assets [Member] | January 31, 2016 [Member]
Prior Period Reclassification Adjustment			$ 2,200,000
Increase in Deferred Tax Assets Valuation Allowance [Member] | January 31, 2016 [Member]
Prior Period Reclassification Adjustment			1,200,000
Offset to Accumulated Deficit [Member] | January 31, 2016 [Member]
Prior Period Reclassification Adjustment			1,000,000
Cumulative-effect Adjustment to Reduce Opening Accumulated Deficit [Member] | February 1, 2016 [Member]
Prior Period Reclassification Adjustment			400,000
Increase in Cash Provided By Operating Activities, and a Decrease in Cash Used in Financing Activities [Member] | January 31, 2016 [Member]
Prior Period Reclassification Adjustment			800,000
Increase in Cash Provided By Operating Activities, and a Decrease in Cash Used in Financing Activities [Member] | January 31, 2015 [Member]
Prior Period Reclassification Adjustment			$ 300,000
Computer Equipment and Software [Member]
Property, Plant and Equipment, Useful Life			3 years
Furniture and Office Equipment [Member]
Property, Plant and Equipment, Useful Life			5 years
Building Improvements [Member]
Property, Plant and Equipment, Useful Life			10 years
Building [Member]
Property, Plant and Equipment, Useful Life			39 years
Leasehold Improvements [Member]
Property, Plant and Equipment, Useful Life			5 years
Common Class A [Member]
Stock Issued During Period, Shares, New Issues	450,000	2,000,000		450,000	2,000,000
Proceeds from Issuance of Common Stock	$ 8,400,000	$ 37,000,000		$ 8,400,000	$ 37,000,000