Quarterly report pursuant to sections 13 or 15(d)

Short Term Debt (Detail)

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Short Term Debt (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Mar. 31, 2012
Short Term Debt    
Short Term Debt $ 2,543 $ 75
Equipment Leases and accrued interest on debt
   
Short Term Debt    
Short Term Debt 23 2
Senior Secured Convertible Notes due June 21, 2013
   
Short Term Debt    
Short Term Debt 2,299  
Secured Note
   
Short Term Debt    
Short Term Debt $ 221 $ 73