Commitments and Contingencies - Additional Information (Detail) - Demand Debt Instrument [Member] |
9 Months Ended |
|---|---|
|
Oct. 31, 2015
USD ($)
| |
| Contingencies And Commitments [Line Items] | |
| Demand notes payable | $ 20,000,000 |
| Line of credit expiration date | Feb. 26, 2016 |
| X | ||||||||||
- Definition Contingencies And Commitments [Line Items] No definition available.
|
| X | ||||||||||
- Definition Date the credit facility terminates, in CCYY-MM-DD format. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|