Basis of Presentation and Summary of Significant Accounting Policies - Schedules of Concentration of Revenue and Accounts Receivable (Parenthetical) (Details) - Partner A - Customer Concentration Risk			3 Months Ended		9 Months Ended
	Oct. 31, 2017	Jan. 31, 2017	Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2017	Oct. 31, 2016
Revenue
Accounting Policies [Line Items]
Concentration risk percentage			36.00%		27.00%
Revenue | Maximum
Accounting Policies [Line Items]
Concentration risk percentage				10.00%		10.00%
Accounts Receivable
Accounting Policies [Line Items]
Concentration risk percentage	37.00%	16.00%
Accounts Receivable | Maximum
Accounting Policies [Line Items]
Concentration risk percentage		10.00%