XML 20 R46.htm IDEA: XBRL DOCUMENT v2.4.0.8
Inventory - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended 3 Months Ended
Sep. 30, 2014
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2013
Maximum
Inventory [Line Items]        
Inventory write-down $ 600 $ 1,285 $ 192 $ 100