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Variable Interest Entity - Additional Information (Detail) (USD $)
 12 Months Ended
Oct. 31, 2012
Oct. 31, 2011
Variable Interest Entity [Line Items]    
Reduction in total assets $ (1,600,000)  
Reduction in total liabilities (1,400,000)  
Restricted cash    66,926
Other current assets 639,954 511,832
Other assets 34,658 102,828
Total assets 25,463,418 24,377,946
Liabilities 5,233,113 4,699,918
Operations of K&K
    
Variable Interest Entity [Line Items]    
Restricted cash   66,926
Other current assets   12,827
Land and building, net   1,476,925
Other assets   70,668
Total assets   1,627,346
Liabilities   $ 1,413,730