Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Additional Information (Detail)

v2.4.0.8
Commitments and Contingencies - Additional Information (Detail) (JP Morgan [Member], USD $)
In Millions, unless otherwise specified
6 Months Ended
Jul. 31, 2014
JP Morgan [Member]
 
Contingencies And Commitments [Line Items]  
Demand notes payable $ 20.0
Line of Credit expiration date Nov. 27, 2014