Annual report pursuant to Section 13 and 15(d)

Employee Benefit Plans (Details)

v2.4.0.6
Employee Benefit Plans (Details) (USD $)
12 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Mar. 31, 2011
Employee Benefit Plans      
Maximum employee contribution as percentage of their eligible compensation 90.00%    
Employer's matching contribution on the dollar up to 4% of the employee's contributions (as a percent) 50.00%    
Maximum percentage of employee's contributions for employer's matching contribution of 50 cents for every dollar contributed by employees 4.00%    
Employer's contributions made since the inception of the plan $ 0    
Employer's match vesting percentage 25.00%    
Employer's match vesting period starting from employee's hire date 4 years    
Expense recorded $ 200,000 $ 300,000 $ 200,000