Computation of Basic and Diluted Earnings Per Share (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Numerator:
Net income for basic and diluted earnings per share	$ 1,317	$ 5,999
Denominator:
Denominator for basic earnings per share - weighted average shares	27,130	27,130
Effect of dilutive securities on denominator:
Options
Denominator for diluted earnings per share - weighted average shares and assumed conversions	27,130	27,130
Net income per share:
Basic and diluted income per share	$ 0.05	$ 0.22