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Reconciliation of Income Tax at Federal Statutory Rate (Detail) (USD $)
 12 Months Ended
Oct. 31, 2012
Oct. 31, 2011
Income Tax Disclosure [Line Items]    
Income tax at Federal statutory rate $ 1,397,891 $ 392,500
State tax provision, net of Federal tax benefit 229,928 23,855
Nondeductible differences:    
ISO stock options, net 7,182 16,297
Business acquisition costs    131,504
Qualified domestic production deduction (46,121)   
Other 36,252   
Uncertain tax positions (79,223) (116,284)
R&D credit    (86,166)
Other (45,422) 17,126
Provision for income taxes $ 1,500,487 $ 378,832
Income tax at Federal statutory rate (Pretax Income) 34.00% 34.10%
State tax provision, net of Federal tax benefit (Pretax Income) 5.60% 2.10%
Nondeductible differences: ( Pretax Income)    
ISO stock options, net (Pretax Income) 0.20% 1.40%
Business acquisition costs (Pretax Income)    11.40%
Qualified domestic production deduction (Pretax Income) (1.10%)   
Other (Pretax Income) 0.90%   
Uncertain tax positions (Pretax Income) (1.90%) (10.10%)
R&D credit (Pretax Income)    (7.50%)
Other (Pretax income) (1.20%) 1.50%
Provision for income taxes (Pretax Income) 36.50% 32.90%