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Short Term Debt (Parenthetical) (Detail) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Mar. 31, 2013
Short-term Debt [Line Items]    
Short Term Debt, Discount $ 523 $ 726
Discount on Notes 159 159
Senior Secured Convertible Note
   
Short-term Debt [Line Items]    
Short Term Debt, Discount 0 187
Convertible Note
   
Short-term Debt [Line Items]    
Discount on Notes 393 539
Convertible Sellers Note
   
Short-term Debt [Line Items]    
Discount on Notes $ 130 $ 0