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Other Income (Details) (USD $)
3 Months Ended 9 Months Ended
Nov. 30, 2012
Nov. 30, 2011
Nov. 30, 2012
Nov. 30, 2011
Other income (Textual)        
Total other income $ 230,000 $ 8,000 $ 269,000 $ 19,000
Interest income on investment in treasury bills net of changes in market value 11,000    38,000 11,000
Income from Cancellation of Debt 215,000      
Income from receivables adjustments $ 4,000 $ 8,000 $ 16,000 $ 8,000