Property Plant and Equipment - Additional Information (Detail) (USD $)	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 88,000	$ 106,000
Property, plant and equipment disposed, gross book value	412,000	20,000
Gain (loss) from disposal of property, plant and equipment	$ 2,000	$ (2,000)