|
Segment Information, Significant Customers and Geographic Information - Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area (Parenthetical) (Detail) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
|
Jul. 31, 2014
|
Jul. 31, 2013
|
Jul. 31, 2014
|
Jul. 31, 2013
|
|
| Segment Reporting Information [Line Items] | ||||
| Total revenues | $ 29,849 | $ 37,380 | $ 54,186 | $ 72,932 |
|
United States Revenue [Member]
|
||||
| Segment Reporting Information [Line Items] | ||||
| Total revenues | $ 17,979 | $ 20,465 | $ 31,447 | $ 35,639 |
|
United States Revenue [Member] | Sales [Member]
|
||||
| Segment Reporting Information [Line Items] | ||||
| % of total revenues | 60.20% | 54.70% | 58.00% | 48.90% |
| X | ||||||||||
|
- Definition
For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|