BUSINESS COMBINATIONS - Calm Acquisition (Details) - USD ($)
$ in Thousands
Aug. 22, 2016
Jan. 31, 2017
Jul. 31, 2016
Business Acquisition [Line Items]      
Goodwill   $ 16,784 $ 0
Calm Acquisition      
Business Acquisition [Line Items]      
Consideration transferred $ 7,700    
Business acquisition equity issued (in shares) 528,517    
Cash payment to acquire business $ 1,400    
Goodwill 4,800    
Intangible assets $ 4,000    
Estimated Life (in years) 4 years 10 months    
Acquisition related costs $ 600