Summary of Stock-Based Compensation Expense Related to Common Stock and Common Stock Option Awards (Detail) (USD $)	3 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Summary Of Stock Based Compensation Expense Related To Common Stock and Common Stock Option Awards [Line Items]
Stock-based compensation expense	$ 119,139	$ 1,552,304
Cost of services
Summary Of Stock Based Compensation Expense Related To Common Stock and Common Stock Option Awards [Line Items]
Stock-based compensation expense	28,743	488,879
General and administrative
Summary Of Stock Based Compensation Expense Related To Common Stock and Common Stock Option Awards [Line Items]
Stock-based compensation expense	$ 90,396	$ 1,063,425