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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
 3 Months Ended
Jan. 31, 2013
Jan. 31, 2012
OPERATING ACTIVITIES:    
Consolidated net income $ 1,482,488 $ 117,208
Adjustments to reconcile consolidated net income to net cash provided by operating activities:    
Bad debt (recovery) expense 24,105 (9,140)
Depreciation and amortization 159,238 161,621
Stock-based compensation expense 33,108 67,187
Excess tax benefit from stock-based compensation (236,336) (55,960)
Changes in operating assets and liabilities (net of effects of deconsolidation of VIE on January 25, 2012):    
Restricted cash 0 4,471
Trade accounts receivable (636,072) (273,348)
Inventories 247,174 (92,021)
Other current assets (310,010) (262,364)
Accounts payable (372,951) 752,756
Customer deposit 50,957 0
Income taxes prepaid (payable) (41,079) 79,159
Accrued expenses 259,530 (387,135)
Other long-term liabilities (10,383) (7,856)
Net cash provided by operating activities 649,769 94,578
INVESTING ACTIVITIES:    
Maturity of certificates of deposit 0 1,000,111
Capital expenditures (42,416) (191,816)
Net cash provided by (used in) investing activities (42,416) 808,295
FINANCING ACTIVITIES:    
Proceeds from exercise of stock options 1,313,723 22,741
Purchases of treasury stock 0 (787,243)
Excess tax benefit from exercise of stock options 236,336 55,960
Principal payments on long-term debt 0 (5,481)
Dividends paid (700,215) (352,693)
Net cash provided by (used in) financing activities 849,844 (1,066,716)
Net increase (decrease) in cash and cash equivalents 1,457,197 (163,843)
Cash and cash equivalents, beginning of period 5,491,768 1,760,816
Cash and cash equivalents, end of period 6,948,965 1,596,973
Supplemental cash flow information - income taxes paid 603,000 0
Supplemental schedule of noncash investing and financing activities:    
Retirement of treasury stock 0 787,242
Assets and liabilities of VIE as of January 25, 2012:    
Other current assets 949,964  
Property and equipment, net 3,047,085  
Other assets, net 34,658  
Mortgages payable 50,957  
Net equity 22,595,745  
Variable Interest Entity
    
Assets and liabilities of VIE as of January 25, 2012:    
Restricted cash 0 62,455
Other current assets 0 23,801
Property and equipment, net 0 1,467,674
Other assets, net 0 69,784
Mortgages payable 0 1,408,249
Net equity $ 0 $ 215,465