XML 104 R89.htm IDEA: XBRL DOCUMENT v3.8.0.1
Income taxes Components of income tax expense (benefit) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Jan. 31, 2018
Jan. 31, 2017
Components of income tax expense (benefit) [Abstract]    
Current federal $ 0 $ (106)
Current foreign 697 837
Current state and other 28 (1,309)
Total current income tax expense (benefit) 725 (578)
Deferred federal (33) 0
Deferred foreign (925) (33)
Deferred state and other 0 0
Total deferred income tax benefit (958) (33)
Total income tax benefit $ (233) $ (611)