Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Nov. 30, 2015	Nov. 30, 2014
Cash flows from operations:
Net income (loss)	$ (557,842)	$ 935,247
Adjustments to reconcile net income to net cash provided by operating activities:
Stock based compensation	28,484	14,504
(Gain) Loss on disposal of property, plant, and equipment	123,405	(6,268)
Depreciation expense	929,180	906,702
Impairment of goodwill	618,729	0
Bad debt expense (recovery)	(4,605)	4,539
Deferred income taxes	(180,919)	157,089
Changes in assets and liabilities:
Accounts receivable	908,700	33,529
Inventories	(609,804)	(166,755)
Income taxes receivable	(245,495)	8,096
Other current assets	59,308	69,559
Accounts payable	(352,253)	68,447
Contracts in progress, net	(198,653)	103,356
Customer deposits	71,215	(52,094)
Accrued expenses	(304,415)	(134,147)
Net cash provided by operating activities	285,035	1,941,805
Cash flows from investing activities:
Purchases of property, plant, and equipment	(292,543)	(633,078)
Proceeds from sale of assets	38,906	15,870
Net cash (used in) investing activities	(253,637)	(617,208)
Cash flows from financing activities:
Net change in line of credit	$ 1,390,550	(780,894)
Proceeds from term debt		1,000,000
Repayment of term debt	$ (1,283,897)	(1,247,697)
Proceeds from the exercise of stock options	0	$ 7,760
Dividends paid to stockholders	(202,432)
Net cash (used in) financing activities	(95,779)	$ (1,020,831)
Net increase (decrease) in cash	(64,381)	303,766
Cash at beginning of period	511,716	207,950
Cash at end of period	447,334	511,716
Supplemental disclosures of cash flow information:
Interest	328,529	356,470
Income taxes	$ 282,614	$ 299,988