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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
 9 Months Ended
Jul. 31, 2012
Jul. 31, 2011
OPERATING ACTIVITIES:    
Consolidated net income $ 1,454,846 $ 822,699
Adjustments to reconcile consolidated net income to net cash provided by (used in) operating activities:    
Bad debt (recovery) expense adjustment 19,973 (2,181)
Depreciation and amortization 457,151 229,108
Stock-based compensation expense 163,804 165,368
Excess tax benefit from stock-based compensation (73,133) (216,911)
Changes in operating assets and liabilities (net of effects of deconsolidation of VIE on January 25, 2012):    
Restricted cash 4,471 (5,643)
Trade accounts receivable (554,115) 505,918
Inventories (566,568) (1,241,580)
Other current assets (106,420) (397,245)
Accounts payable 660,874 (388,477)
Income taxes payable 784,621 93,002
Accrued expenses 111,450 212,205
Other long-term liabilities (107,005) (156,530)
Net cash provided by (used in) operating activities 2,249,949 (380,267)
INVESTING ACTIVITIES:    
Acquisition of business (Cables Unlimited)   (2,800,000)
Purchase of certificates of deposit   (4,650,744)
Maturity of certificates of deposit 4,094,724 3,904,000
Capital expenditures (502,830) (271,399)
Net cash provided by (used in) investing activities 3,591,894 (3,818,143)
FINANCING ACTIVITIES:    
Proceeds from exercise of stock options 141,340 814,697
Excess tax benefit from stock-based compensation 73,133 216,911
Purchase of treasury stock (1,143,243)  
Principal payments on long-term liabilities (5,481) (5,122)
Dividends paid (1,038,408) (387,608)
Net cash provided by (used in) financing activities (1,972,659) 638,878
Net increase (decrease) in cash and cash equivalents 3,869,184 (3,559,532)
Cash and cash equivalents, beginning of period 1,760,816 4,728,884
Cash and cash equivalents, end of period 5,630,000 1,169,352
Supplemental cash flow information:    
Income taxes paid 595,000 680,000
Interest paid   8,982
Supplemental schedule of noncash investing and financing activities:    
Retirement of treasury stock 1,143,243  
Stock issuance for acquisition of business (Cables Unlimited)   2,800,000
Dividends payable   2,141,067
Write-off of fully depreciated fixed assets 1,108,655  
Assets and liabilities of VIE as of January 25, 2012:    
Other current assets 594,451  
Property and equipment, net 1,205,535  
Other assets, net 32,159  
Net equity $ 19,094,817