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Restructuring of Operations (Details) (USD $)
3 Months Ended 39 Months Ended
Jan. 31, 2013
Jan. 31, 2012
Jan. 31, 2013
Feb. 28, 2013
Restructuring Charges [Abstract]        
Restructuring charges $ 0 $ 0    
Restructuring charges, cumulative total     2,432,109  
Restructuring Reserve [Roll Forward]        
Beginning Balance 241,821     100,000
Expenses 0      
Paid (142,366)      
Ending Balance 99,455   99,455 100,000
Severance and other costs 36,000      
Occupancy and Equipment Related Costs [Member]
       
Restructuring Charges [Abstract]        
Restructuring charges 0 0    
Restructuring charges, cumulative total 1,618,965      
Restructuring Reserve [Roll Forward]        
Beginning Balance 241,821      
Expenses 0      
Paid (142,366)      
Ending Balance 99,455   99,455  
Costs Incurred to Streamline Production, Personnel and Other [Member]
       
Restructuring Charges [Abstract]        
Restructuring charges 0 0    
Restructuring charges, cumulative total 612,764      
Restructuring Reserve [Roll Forward]        
Beginning Balance 0      
Expenses 0      
Paid 0      
Ending Balance 0   0  
Inventory [Member]
       
Restructuring Charges [Abstract]        
Restructuring charges 0 0    
Restructuring charges, cumulative total $ 200,380