Significant Customer and Other Information (Tables)
 6 Months Ended
Sep. 30, 2016
Significant Customer and Other Information [Abstract]  
Schedule of concentrations of risk
The Company’s largest customers accounted for the following total percentage of net sales:

  
Three Months Ended
September 30,
  
Six Months Ended
September 30,
 
Sales
 
2016
  
2015
  
2016
  
2015
 
Customer A
  
45
%
  
46
%
  
48
%
  
48
%
Customer B
  
21
%
  
21
%
  
18
%
  
20
%
Customer C
  
19
%
  
21
%
  
19
%
  
19
%

The Company’s largest customers accounted for the following total percentage of accounts receivable—trade:
 
Accounts receivable - trade
 
September 30, 2016
  
March 31, 2016
 
Customer A
  
52
%
  
37
%
Customer B
  
8
%
  
17
%
Customer C
  
12
%
  
15
%
 
Geographic and Product Information

The Company’s products are predominantly sold in the U.S. and accounted for the following total percentage of net sales:
 
  
Three Months Ended
September 30,
  
Six Months Ended
September 30,
 
  
2016
  
2015
  
2016
  
2015
 
Rotating electrical products
  
80
%
  
85
%
  
76
%
  
81
%
Wheel hub products
  
20
%
  
19
%
  
21
%
  
18
%
Brake master cylinders products
  
3
%
  
(4
)%
  
4
%
  
1
%
Other products
  
(3
)%
  
-
%
  
(1
)%
  
-
%
   
100
%
  
100
%
  
100
%
  
100
%