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Note 1 - Basis of Presentation and Recent Accounting Pronouncements (Details Textual) - USD ($) $ in Thousands	Oct. 31, 2018	Feb. 01, 2018	Jan. 31, 2018
Retained Earnings (Accumulated Deficit), Ending Balance	$ (52,047)	$ (53,434)	$ (75,559)
Contract with Customer, Liability, Total	81,608	117,098	$ 118,849
Contract with Customer, Asset, Net, Total	$ 1,452	1,000
Commission Expense [Member]
Capitalized Contract Cost, Amortization Period	5 years
Sales Agent Fees [Member]
Capitalized Contract Cost, Amortization Period	5 years
Cloud Environment Setup Costs [Member]
Capitalized Contract Cost, Amortization Period	5 years
Accounting Standards Update 2016-16 [Member]
Retained Earnings (Accumulated Deficit), Ending Balance		9,584
Deferred Tax Assets, Net of Valuation Allowance, Total		9,600
Accounting Standards Update 2014-09 [Member]
Retained Earnings (Accumulated Deficit), Ending Balance		12,541
Accounting Standards Update 2014-09 [Member] \| Removal of Vendor Specific Objective Evidence [Member]
Retained Earnings (Accumulated Deficit), Ending Balance		2,000
Contract with Customer, Liability, Total		(2,000)
Accounting Standards Update 2014-09 [Member] \| Removal of Limitation on Contingent Revenue [Member]
Retained Earnings (Accumulated Deficit), Ending Balance		800
Contract with Customer, Asset, Net, Total		800
Accounting Standards Update 2014-09 [Member] \| Contracts Containing Future Option to Customer Reprsented Material Right Which Resulted in Deferred of Revenue [Member]
Retained Earnings (Accumulated Deficit), Ending Balance		(300)
Contract with Customer, Liability, Total		300
Accounting Standards Update 2014-09 [Member] \| Commission Expense Related to Contracts No Longer Expensed as Incurred [Member]
Retained Earnings (Accumulated Deficit), Ending Balance		9,100
Other Assets, Total		9,100
Accounting Standards Update 2014-09 [Member] \| Sales Agent Fees to Obtain Contracts No Longer Expensed as Incurred [Member]
Retained Earnings (Accumulated Deficit), Ending Balance		1,000
Other Assets, Total		1,000
Accounting Standards Update 2014-09 [Member] \| Cloud Environment Setup Costs Incurred to Fufill New Cloud Customer Contracts No Longer Expensed as Incurred [Member]
Retained Earnings (Accumulated Deficit), Ending Balance		(1,500)
Accounting Standards Update 2014-09 [Member] \| Adjustments for Tax Impact Related to Adoption of ASU 2014-09 [Member]
Retained Earnings (Accumulated Deficit), Ending Balance		(1,600)
Deferred Tax Assets, Net of Valuation Allowance, Total		$ (1,600)