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PURCHASED INTANGIBLE ASSETS - Indefinite Lived Intangible Assets (Details) - Trade Name - USD ($)
$ in Thousands
Apr. 30, 2016
Jan. 31, 2016
TRC    
Indefinite-Lived Intangible Assets    
Indefinite-lived Intangible Assets $ 4,499 $ 4,499
SMC    
Indefinite-Lived Intangible Assets    
Indefinite-lived Intangible Assets $ 181 $ 181