Commitments and Contingencies - Additional Information (Detail) - USD ($)	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Commitments and Contingencies Disclosure [Line Items]
Rent Expense	$ 790,000	$ 777,000
Letters of credit issued percentage of cash collateralized basis	100.00%
Outstanding letters of credit	$ 0	0
Defined contribution 401(k) retirement plan, employer contribution	$ 47,000	$ 58,000