Annual report pursuant to Section 13 and 15(d)

Segment Information (Details 2)

v3.3.0.814
Segment Information (Details 2)
Mar. 31, 2015
Mar. 31, 2014
Verizon [Member]    
Segment Reporting Information [Line Items]    
Entity-wide Major Customer, Percent Accounts Receivable 30.40% 30.60%
AT&T [Member]    
Segment Reporting Information [Line Items]    
Entity-wide Major Customer, Percent Accounts Receivable 12.70% 16.70%