Annual report pursuant to Section 13 and 15(d)

Purchase of Treasury Stock - Additional Information (Detail)

v3.6.0.2
Purchase of Treasury Stock - Additional Information (Detail) - USD ($)
12 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Jan. 29, 2015
Equity [Abstract]      
Stock repurchase program authorized amount     $ 18,000,000
Number of shares purchased during period 539,000 0  
Aggregate cost of shares purchased during period $ 9,441,000