Annual report pursuant to Section 13 and 15(d)

Property and Equipment - Additional Information (Detail)

v3.7.0.1
Property and Equipment - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Mar. 31, 2015
Continuing Operations      
Property Plant And Equipment [Line Items]      
Depreciation expense $ 1,002 $ 437 $ 98