Annual report pursuant to section 13 and 15(d)

Summary of Equity Compensation Plan, Nonvested Options (Detail)

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Summary of Equity Compensation Plan, Nonvested Options (Detail) (Stock Plan, 2007 Employee, Director and Consultant Stock Plan equity compensation plan, USD $)
In Thousands, except Per Share data, unless otherwise specified
12 Months Ended
Mar. 31, 2013
Stock Plan | 2007 Employee, Director and Consultant Stock Plan equity compensation plan
 
Number of Shares  
Beginning Balance 960
Granted   
Vested   
Exercised   
Ending Balance 960
Weighted average exercise price  
Beginning Balance $ 9
Granted   
Vested   
Exercised   
Ending Balance $ 9.00