Annual report pursuant to Section 13 and 15(d)

Segment Information (Details 2)

v3.4.0.3
Segment Information (Details 2)
Mar. 31, 2016
Mar. 31, 2015
Verizon [Member]    
Segment Reporting Information [Line Items]    
Entity-wide Major Customer, Percent Accounts Receivable 32.80% 30.40%
AT&T [Member]    
Segment Reporting Information [Line Items]    
Entity-wide Major Customer, Percent Accounts Receivable 12.80% 12.70%