(Restricted Stock Rights) (Narrative) (Details)
12 Months Ended
Mar. 31, 2015
Stock options vesting description
Generally, our restricted stock rights vest according to one of the following vesting schedules:

One-year vesting with 100% cliff vesting at the end of one year;
35 month vesting with  1/3 cliff vesting after 11, 23 and 35 months;
Three-year vesting with  1/3 cliff vesting at the end of each year;
Three-year vesting with 100% cliff vesting at the end of year three;
Three-year vesting with  1/2 cliff vesting after 18 and 36 months;
Three-year vesting with 2/3 and 1/3 vesting cliff vesting after 24 and 36 months;
Three-year vesting with  1/4, 7/20, 1/5,  and  1/5 of the shares cliff vesting respectively at the end of each of the first 6 months, 1st, 2nd, and 3rd years;
Four-year vesting with  1/4 cliff vesting at the end of each year or;
Five-year vesting with  1/9,  2/9,  3/9,  2/9 and  1/9 of the shares cliff vesting respectively at the end of each of the 1st, 2nd, 3rd, 4th, and 5th years.
One Year Vesting With One Hundred Percent [Member]  
Cliff vesting period 1 year
Thirty Five Month Vesting With Thirty Three Percent [Member]  
Cliff vesting period 35 months
Three Year Vesting With Thirty Three Percent [Member]  
Cliff vesting period 3 years
Three Year Vesting with One Hundred Percent [Member]  
Cliff vesting period 3 years
Five Year Vesting With Eleven, Twenty Two, and Thirty Three Percent  
Cliff vesting period 5 years
Three Year Vesting With Fifty Percent [Member]  
Cliff vesting period 3 years
Three Year Vesting With Sixty Seven And Thirty Three Percent [Member]  
Cliff vesting period 3 years
Three Year Vesting With Twenty, Twenty Five, and Thirty Five Percent [Member]  
Cliff vesting period 3 years
Four Year Vesting With Twenty Five Percent [Member]  
Cliff vesting period 4 years
Vesting Year 1 [Member] | One Year Vesting With One Hundred Percent [Member]  
Cliff vesting percentage 100.00%
Vesting Year 1 [Member] | Thirty Five Month Vesting With Thirty Three Percent [Member]  
Cliff vesting percentage 33.00%
Cliff vesting period 11 months
Vesting Year 1 [Member] | Three Year Vesting With Thirty Three Percent [Member]  
Cliff vesting percentage 33.00%
Vesting Year 1 [Member] | Five Year Vesting With Eleven, Twenty Two, and Thirty Three Percent  
Cliff vesting percentage 11.00%
Vesting Year 1 [Member] | Three Year Vesting With Fifty Percent [Member]  
Cliff vesting percentage 50.00%
Cliff vesting period 18 months
Vesting Year 1 [Member] | Three Year Vesting With Twenty, Twenty Five, and Thirty Five Percent [Member]  
Cliff vesting percentage 35.00%
Vesting Year 1 [Member] | Four Year Vesting With Twenty Five Percent [Member]  
Cliff vesting percentage 25.00%
Vesting Year 2 [Member] | Thirty Five Month Vesting With Thirty Three Percent [Member]  
Cliff vesting percentage 33.00%
Cliff vesting period 23 months
Vesting Year 2 [Member] | Three Year Vesting With Thirty Three Percent [Member]  
Cliff vesting percentage 33.00%
Vesting Year 2 [Member] | Five Year Vesting With Eleven, Twenty Two, and Thirty Three Percent  
Cliff vesting percentage 22.00%
Vesting Year 2 [Member] | Three Year Vesting With Fifty Percent [Member]  
Cliff vesting percentage 50.00%
Cliff vesting period 36 months
Vesting Year 2 [Member] | Three Year Vesting With Sixty Seven And Thirty Three Percent [Member]  
Cliff vesting percentage 67.00%
Vesting Year 2 [Member] | Three Year Vesting With Twenty, Twenty Five, and Thirty Five Percent [Member]  
Cliff vesting percentage 20.00%
Vesting Year 2 [Member] | Four Year Vesting With Twenty Five Percent [Member]  
Cliff vesting percentage 25.00%
Vesting Year 3 [Member] | Thirty Five Month Vesting With Thirty Three Percent [Member]  
Cliff vesting percentage 33.00%
Cliff vesting period 35 months
Vesting Year 3 [Member] | Three Year Vesting With Thirty Three Percent [Member]  
Cliff vesting percentage 33.00%
Vesting Year 3 [Member] | Three Year Vesting with One Hundred Percent [Member]  
Cliff vesting percentage 100.00%
Vesting Year 3 [Member] | Five Year Vesting With Eleven, Twenty Two, and Thirty Three Percent  
Cliff vesting percentage 33.00%
Vesting Year 3 [Member] | Three Year Vesting With Sixty Seven And Thirty Three Percent [Member]  
Cliff vesting percentage 33.00%
Vesting Year 3 [Member] | Three Year Vesting With Twenty, Twenty Five, and Thirty Five Percent [Member]  
Cliff vesting percentage 20.00%
Vesting Year 3 [Member] | Four Year Vesting With Twenty Five Percent [Member]  
Cliff vesting percentage 25.00%
Vesting 6 Months [Member] | Three Year Vesting With Twenty, Twenty Five, and Thirty Five Percent [Member]  
Cliff vesting percentage 25.00%
Vesting Year 4 [Member] | Five Year Vesting With Eleven, Twenty Two, and Thirty Three Percent  
Cliff vesting percentage 22.00%
Vesting Year 4 [Member] | Four Year Vesting With Twenty Five Percent [Member]  
Cliff vesting percentage 25.00%
Vesting Year 5 [Member] | Five Year Vesting With Eleven, Twenty Two, and Thirty Three Percent  
Cliff vesting percentage 11.00%