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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
 3 Months Ended
Jan. 31, 2018
Jan. 31, 2017
Cash flows from operating activities:    
Net loss $ (410,135) $ (615,767)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation, amortization and accretion 408,284 506,342
Bad debt expense (recovery) 23,489 (568)
Share-based compensation expense 113,354 148,920
Loss on sale of property and equipment 6,597 78,482
(Increase) decrease in:    
Trade accounts receivable (2,392,171) 382,725
Other receivables 49,975 21,437
Inventories (840,091) (1,017,384)
Prepaid expenses (35,206) (14,555)
Income taxes refundable - noncurrent (35,118)
Increase (decrease) in:    
Accounts payable and accrued expenses 2,453,419 465,111
Accrued compensation and payroll taxes 366,605 5,873
Income taxes payable 1,656 (2,100)
Other noncurrent liabilities (8,616) (27,428)
Net cash used in operating activities (297,958) (68,912)
Cash flows from investing activities:    
Purchase of and deposits for the purchase of property and equipment (41,903) (68,117)
Investment in intangible assets (25,661) 2,277
Net cash used in investing activities (67,564) (65,840)
Cash flows from financing activities:    
Payroll taxes withheld and remitted on share-based payments (135,499) (11,279)
Proceeds from note payable to bank 750,000
Principal payments on long-term debt and note payable to bank (611,199) (471,758)
Repurchase of common stock (15,594)
Net cash provided by (used in) financing activities 3,302 (498,631)
Net decrease in cash (362,220) (633,383)
Cash at beginning of period 891,169 1,879,064
Cash at end of period $ 528,949 $ 1,245,681