Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
Nov. 30, 2019	Nov. 30, 2018
Cash flows from operations:
Net (loss) from continuing operations	$ (1,419,586)	$ (3,336,049)
Net (loss) from discontinued operations		(50,853)
Adjustments to reconcile net (loss) to net cash provided by operating activities:
Stock based compensation	195,416	197,243
Loss on release of cumulative translation adjustment		253,180
Realized foreign currency loss		3,830
Impairment of Assets		591,268
Gain on disposal of property, plant, and equipment	(9,999)	(4,837)
Depreciation and amortization expense	1,003,541	960,606
Change in allowance for doubtful accounts	(2,175)	(7,198)
Deferred income taxes	(353,626)	(531,026)
Changes in assets and liabilities:
Accounts receivable	(140,687)	380,379
Inventories	1,478,595	900,854
Net investment in sales-type leases	123,055	(276,842)
Other assets	54,158	150,666
Accounts payable	403,251	128,409
Contracts in progress, net	(723,463)	102,662
Customer deposits	(40,269)	(454,693)
Income taxes payable		3,300
Accrued expenses	239,542	(88,274)
Net cash provided by (used in) operating activities - continuing operations	807,753	(1,026,522)
Net cash (used in) operating activities - discontinued operations		(92,090)
Net cash provided by (used in) operating activities	807,753	(1,118,612)
Cash flows from investing activities:
Purchases of property, plant, and equipment	(447,025)	(434,505)
Additions to assets held for lease		(329,815)
Net proceeds from sale of assets	899,713	52,606
Net cash provided by (used in) investing activities - continuing operations	452,688	(711,714)
Net cash provided by investing activities - discontinued operations		1,418,761
Net cash provided by investing activities	452,688	707,047
Cash flows from financing activities:
Net change in line of credit	927,000	(1,043,000)
Repayment of term debt	(314,485)	(219,429)
Repurchases of common stock	(19,323)	(21,310)
Net cash provided by (used in) financing activities - continuing operations	(1,260,808)	802,261
Net cash (used in) financing activities - discontinued operations		(599,584)
Net cash provided by (used in) financing activities	(1,260,808)	202,677
Net (decrease) in cash	(367)	(208,888)
Cash at beginning of period	3,512	212,400
Cash at end of period	3,145	3,512
Supplemental disclosures of cash flow information:
Interest	329,356	286,070
Income taxes	3,855	5,237
Supplemental disclosures of non-cash operating and investing activities:
Transfer of inventory to assets held for lease		$ 808,766

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Amount of cash inflow (outflow) from operating activities, excluding discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

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The cash outflow to reacquire common stock during the period.

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The cash outflow for payments to acquire rented equipment which is recorded as an asset.

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The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

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The net cash inflow or cash outflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with either short term or long term maturity that is collateralized (backed by pledge, mortgage or other lien in the entity's assets).

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The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.

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Amount of expense (reversal of expense) for expected credit loss on accounts receivable.

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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Amount of noncash expense for share-based payment arrangement.

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