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Note 3 - Acquisitions - Preliminary Purchase Price Allocation for Businesses Acquired (Details) (Parentheticals) - USD ($)
$ in Thousands
12 Months Ended
Jan. 31, 2021
Jan. 31, 2020
Jan. 31, 2019
Peoplevox [Member]      
Cash acquired $ 1,634    
Kontainers [Member]      
Cash acquired 13    
ShipTrack [Member]      
Cash acquired $ 529    
Visual Compliance [Member]      
Cash acquired   $ 170  
Core Transport Technologies NZ Limited [Member]      
Cash acquired   213  
STEPcom [Member]      
Cash acquired   2,700  
BestTransport [Member]      
Cash acquired   $ 507  
Aljex Software, Inc. [Member]      
Cash acquired     $ 193
Velocity Mail [Member]      
Cash acquired    
PinPoint [Member]      
Cash acquired     $ 769