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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
 12 Months Ended
Oct. 31, 2019
Oct. 31, 2018
OPERATING ACTIVITIES:    
Consolidated net income $ 3,521,000 $ 5,846,000
Loss from discontinued operations 0 (180,000)
Income from continuing operations 3,521,000 6,026,000
Adjustments to reconcile consolidated net income to net cash provided by (used in) operating activities:    
Bad debt expense 21,000 8,000
Depreciation and amortization 563,000 513,000
Gain on sale of fixed assets 0 (1,000)
Stock-based compensation expense 317,000 211,000
Deferred income taxes (43,000) (79,000)
Changes in operating assets and liabilities:    
Trade accounts receivable (6,640,000) (1,360,000)
Inventories (657,000) (1,570,000)
Other current assets 218,000 (321,000)
Other long-term assets (1,000) 21,000
Accounts payable 106,000 306,000
Accrued expenses (211,000) 1,516,000
Income tax payable 21,000 0
Other long-term liabilities 75,000 0
Net cash provided by (used in) operating activities from continuing operations (2,710,000) 5,270,000
Net cash provided by operating activities from discontinued operations 0 945,000
INVESTING ACTIVITIES:    
Proceeds from landlord for tenant improvements 0 34,000
Proceeds from sale of fixed assets 0 1,000
Capital expenditures (538,000) (266,000)
Proceeds from sale of Comnet 0 4,200,000
Purchase of C Enterprises, net of cash acquired ($143) (458,000) 0
Net cash provided by (used in) investing activities from continuing operations (996,000) 3,969,000
Net cash used in investing activities from discontinued operations 0 (272,000)
FINANCING ACTIVITIES:    
Proceeds from exercise of stock options 660,000 1,113,000
Dividends paid (748,000) (730,000)
Net cash provided by (used in) financing activities (88,000) 383,000
Net increase (decrease) in cash and cash equivalents (3,794,000) 10,295,000
Cash and cash equivalents of continuing operations, beginning of year 16,334,000 5,208,000
Cash and cash equivalents of discontinued operations, beginning of year 0 831,000
Cash and cash equivalents, beginning of year 16,334,000 6,039,000
Cash and cash equivalents, end of year 12,540,000 16,334,000
Supplemental cash flow information - income taxes paid 739,000 1,826,000
Supplemental schedule of noncash investing and financing activities:    
Disposal of fully depreciated property and equipment 0 (90,000)
Write off of deferred rent from sale of Comnet $ 0 $ 9,000