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Consolidated Statements of Cash Flows - USD ($)
 12 Months Ended
Oct. 31, 2020
Oct. 31, 2019
Oct. 31, 2018
Cash flows from operating activities:      
Net income (loss) $ (6,121,224) $ (5,669,321) $ 1,068,753
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:      
Depreciation, amortization and accretion 1,427,067 1,720,562 1,817,597
Bad debt expense (recovery) 425,055 60,381 (18,455)
Share-based compensation expense 142,242 980,549 2,224,620
Loss on sale of property and equipment 10,538 2,058 56,710
(Increase) decrease in:      
Trade accounts receivable 2,361,208 2,424,912 (3,873,895)
Other receivables 46,582 (7,776) 10,147
Income taxes refundable 25,004 (726) (49,281)
Inventories 995,860 (620,872) (693,306)
Prepaid expenses and other assets (167,803) 243,778 (81,899)
Other assets (8,180) 21,473 0
Increase (decrease) in:      
Accounts payable and accrued expenses (3,040,820) 2,323,012 622,444
Accrued compensation and payroll taxes (300,031) (1,725,732) 2,148,321
Income taxes payable (1,396) (6,284) 6,516
Other noncurrent liabilities 652,761 (29,811) (32,024)
Net cash provided by (used in) operating activities (3,553,137) (283,797) 3,206,248
Cash flows from investing activities:      
Purchase of and deposits for the purchase of property and equipment (120,001) (487,554) (688,856)
Investment in intangible assets (48,457) (62,843) (45,539)
Net cash used in investing activities (168,458) (550,397) (734,395)
Cash flows from financing activities:      
Payroll taxes withheld and remitted on share-based payments 0 (943,355) (170,501)
Proceeds from note payable to bank, SBA PPP loan 4,981,400 0 0
Proceeds from note payable to bank, revolver 350,000 2,850,000 9,550,000
Proceeds from note payable, revolver 19,540,233 0 0
Payments on note payable to bank, revolver (6,000,000) (200,000) (12,250,000)
Payments on note payable, revolver (14,551,573) 0 0
Principal payments on long-term debt (743,057) (510,961) (250,749)
Payments for financing costs (251,899) 0 (62,802)
Repurchase of common stock 0 (1,573) (1,557)
Net cash provided by (used in) financing activities 3,325,104 1,194,111 (3,185,609)
Net increase (decrease) in cash (396,491) 359,917 (713,756)
Cash at beginning of year 537,330 177,413 891,169
Cash at end of year 140,839 537,330 177,413
Supplemental disclosure of cash flow information:      
Cash payments for interest 523,292 515,995 503,899
Income taxes paid, net of refunds (9,703) 30,483 27,808
Noncash investing and financing activities:      
Capital expenditures accrued in accounts payable at year end $ 10,482 $ 0 $ 118,203