Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	9 Months Ended
	Aug. 31, 2015	Aug. 31, 2014
Cash flows from operations:
Net income (loss)	$ (395,770)	$ 553,051
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Stock based compensation	28,484	14,504
(Gain)/Loss on disposal of property, plant, and equipment	(1,130)	(958)
Depreciation and amortization expense	692,680	$ 633,123
Impairment of goodwill	618,729
Bad debt expense (recovery)	(4,042)	$ 39,207
Deferred income taxes	(187,136)	(10,000)
Changes in assets and liabilities:
Accounts receivable	1,090,141	(2,023,321)
Inventories	(1,404,286)	103,537
Income taxes receivable	(164,596)	(3,821)
Other assets	(209,337)	(81,517)
Accounts payable	351,111	192,203
Contracts in progress, net	(39,771)	(64,514)
Customer deposits	19,687	(26,114)
Accrued expenses	(355,278)	(209,896)
Net cash provided by (used in) operating activities	39,486	(884,516)
Cash flows from investing activities:
Purchases of property, plant, and equipment	(228,624)	(651,251)
Proceeds from sale of assets	20,906	958
Net cash (used in) investing activities	(207,718)	(650,293)
Cash flows from financing activities:
Net change in line of credit	$ 1,462,172	1,489,383
Proceeds from term debt		1,000,000
Repayment of term debt	$ (959,688)	(933,194)
Proceeds from the exercise of stock options		$ 7,760
Dividends paid to stockholders	$ (202,428)
Net cash provided by financing activities	300,056	$ 1,563,949
Net increase in cash	131,824	29,140
Cash at beginning of period	511,716	207,950
Cash at end of period	643,540	237,090
Supplemental disclosures of cash flow information:
Interest	242,248	273,726
Income taxes	$ 263,674	$ 296,845