Annual report pursuant to Section 13 and 15(d)

Segment Information (Details 1)

v3.4.0.3
Segment Information (Details 1)
12 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Mar. 31, 2014
Verizon [Member]      
Revenue, Major Customer [Line Items]      
Percentage Of Net Revenue 23.10% 30.50% 23.90%
AT&T [Member]      
Revenue, Major Customer [Line Items]      
Percentage Of Net Revenue 11.10% 9.20% 8.80%
Telamon [Member]      
Revenue, Major Customer [Line Items]      
Percentage Of Net Revenue 4.40% 5.80% 30.30%