Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	9 Months Ended
	Aug. 31, 2016	Aug. 31, 2015
Cash flows from operations:
Net income (loss) from continuing operations	$ 807	$ (261,968)
Net (loss) from discontinued operations	(264,685)	(133,802)
Adjustments to reconcile net (loss) to net cash provided by operating activities:
Stock based compensation	70,846	28,484
(Gain)/Loss on disposal of property, plant, and equipment	(26,473)	(1,130)
Depreciation and amortization expense	516,904	612,903
Impairment of goodwill		618,729
Bad debt expense (recovery)	24,527	2,251
Deferred income taxes	(64,969)	(187,136)
Changes in assets and liabilities:
Accounts receivable	(842,313)	1,107,527
Inventories	1,517,567	(1,406,091)
Income taxes receivable	192,041	(164,596)
Other assets	(233,758)	(198,189)
Accounts payable	622,394	296,353
Contracts in progress, net	(147,356)	(39,771)
Customer deposits	(100,631)	9,586
Income taxes payable
Accrued expenses	(247,339)	(341,324)
Net cash provided by operating activities - continuing operations	1,282,247	75,628
Net cash provided by (used in) operating activities - discontinued operations	82,632	(36,142)
Net cash provided by operating activities	1,364,879	39,486
Cash flows from investing activities:
Purchases of property, plant, and equipment	(114,376)	(218,367)
Net proceeds from sale of assets	1,173,492	20,906
Net cash provided by (used in) investing activities - continuing operations	1,059,116	(197,461)
Net cash(used in) investing activities - discontinued operations	(19,068)	(10,257)
Net cash provided by (used in) investing activities	1,040,048	(207,718)
Cash flows from financing activities:
Net change in line of credit	525,542	(1,462,172)
Repayment of term debt	(1,730,774)	(867,642)
Dividends paid to stockholders		(202,428)
Net cash provided by (used in) financing activities - continuing operations	(2,256,316)	392,102
Net cash (used in) financing activities - discontinued operations	(94,789)	(92,046)
Net cash provided by (used in) financing activities	(2,351,105)	300,056
Net increase in cash	53,822	131,824
Cash at beginning of period	447,231	511,716
Cash at end of period	501,053	643,540
Supplemental disclosures of cash flow information:
Interest	202,007	242,248
Income taxes	$ 4,872	$ 263,674