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Note 1 - Summary of Business and Significant Accounting Policies - Goodwill (Details) - USD ($)
$ in Thousands
12 Months Ended
Jan. 31, 2019
Jan. 31, 2018
Beginning balance, gross $ 26,631 $ 26,166
Impact of foreign currency translation, gross (110) 465
Additions 1,510  
Ending balance, gross 28,031 26,631
Accumulated impairment (15,608) (15,608)
Beginning balance, net 11,023 10,558
Impact of foreign currency translation (110) 465
Additions 1,510  
Ending balance, net $ 12,423 $ 11,023