Commitments and Contingencies - Additional Information (Detail) (USD $)	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Commitments and Contingencies Disclosure [Line Items]
Rent Expense	$ 777,000	$ 1,151,000
Letters of credit issued percentage of cash collateralized basis	100.00%
Outstanding letters of credit	0	100,000
Defined contribution 401(k) retirement plan, employer contribution	$ 58,000	$ 65,000