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Note 13 - Commitments, Contingencies and Guarantees (Details)
£ in Millions
 12 Months Ended
Jan. 31, 2016
USD ($)
shares
Jan. 31, 2015
USD ($)
Jan. 31, 2014
USD ($)
Jan. 31, 2016
GBP (£)
shares
Jan. 31, 2015
GBP (£)
Dec. 05, 2014
USD ($)
Note 13 - Commitments, Contingencies and Guarantees (Details) [Line Items]            
Operating Leases, Rent Expense $ 4,400,000 $ 5,200,000 $ 4,800,000      
Cash Settled Restricted Share Units Nonvested Total Compensation Cost Not Yet Recognized $ 1,000,000          
Number of Unvested Deferred Share Units (in Shares) | shares 0     0    
Accounts Payable and Accrued Liabilities [Member]            
Note 13 - Commitments, Contingencies and Guarantees (Details) [Line Items]            
Capital Lease Obligations $ 200,000          
E-Customs [Member]            
Note 13 - Commitments, Contingencies and Guarantees (Details) [Line Items]            
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High 1,200,000     £ 0.8    
Business Combination, Contingent Consideration, Liability 0          
Pentant Limited (Pentant) [Member]            
Note 13 - Commitments, Contingencies and Guarantees (Details) [Line Items]            
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High   $ 400,000     £ 0.3  
Business Combination, Contingent Consideration, Liability $ 0         $ 400,000