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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) | 3 Months Ended
--- | ---
Feb. 29, 2024 | Feb. 28, 2023
Cash flows from operations: |  |
Net income (loss) from continuing operations | $ (424,259) | $ 350,295
Net loss on discontinued operations | (40,781) | (8,085)
Adjustments to reconcile net income (loss) to net cash used in operating activities: |  |
Stock based compensation | 65,957 | 68,888
Decrease in obsolete inventory reserves | (6,098) | (27,086)
Gain on disposal of property, plant, and equipment | 0 | (2,900)
Depreciation and amortization expense | 208,116 | 201,903
Increase in allowance for expected credit losses - accounts receivable | 391 | 1,260
Deferred income taxes | (124,863) | 91,136
Changes in assets and liabilities: |  |
Accounts receivable | 385,436 | (934,410)
Inventories | 54,123 | (1,061,421)
Other assets | (301,491) | (91,007)
Accounts payable | (1,109,202) | (129,129)
Contracts in progress, net | 858,512 | 701,406
Customer deposits | 670,992 | 1,969,871
Accrued expenses | (375,739) | 26,437
Net cash provided by (used in) operating activities - continuing operations | (67,670) | 1,165,243
Net cash provided by (used in) operating activities - discontinued operations | (31,604) | 103,354
Net cash provided by (used in) operating activities | (99,274) | 1,268,597
Cash flows from investing activities: |  |
Purchases of property, plant, and equipment | (281,174) | (296,114)
Net proceeds from sale of assets | 0 | 2,900
Net cash used in investing activities - continuing operations | (281,174) | (293,214)
Net cash used in investing activities - discontinued operations | 0 | (17,543)
Net cash used in investing activities | (281,174) | (310,757)
Cash flows from financing activities: |  |
Net change in line of credit | (466,917) | 868,941
Principal payments on finance lease obligations | (22,769) | (35,155)
Repayment of term debt | (26,489) | (26,870)
Repurchases of common stock | (37,654) | (20,334)
Net cash provided by (used in) financing activities - continuing operations | 380,005 | (951,300)
Net cash used in financing activities - discontinued operations | (1,086) | (7,583)
Net cash provided by (used in) financing activities | 378,919 | (958,883)
Net decrease in cash | (1,529) | (1,043)
Cash at beginning of period | 4,014 | 5,055
Cash at end of period | 2,485 | 4,012
Supplemental disclosures of cash flow information: |  |
Interest | 161,033 | 122,315
Income taxes | 0 | 46
Right-of-use (ROU) assets acquired (included in other assets) | 38,192 | 0
Amortization of operating lease ROU assets (included in other assets) | 2,383 | 3,319
Computer Software, Intangible Asset [Member] |  |
Adjustments to reconcile net income (loss) to net cash used in operating activities: |  |
Amortization of cloud computing implementation costs | $ 30,455 | $ 0

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- Definition Amount of increase (decrease) in obligation to transfer good or service to customer for which consideration has been received or is receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 912 -SubTopic 310 -Name Accounting Standards Codification -Section 45 -Paragraph 11 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482312/912-310-45-11 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 + Details
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