Consolidated Statements of Cash Flows (USD $)	12 Months Ended
Nov. 30, 2014	Nov. 30, 2013
Cash flows from operations:
Net income	$ 935,247us-gaap_NetIncomeLoss	$ 1,551,376us-gaap_NetIncomeLoss
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Stock based compensation	14,504us-gaap_ShareBasedCompensation	29,812us-gaap_ShareBasedCompensation
(Gain) on disposal of property, plant, and equipment	6,268	601,678
Depreciation expense	906,702us-gaap_Depreciation	704,457us-gaap_Depreciation
Bad debt expense (recovery)	4,540us-gaap_ProvisionForDoubtfulAccounts	7,516us-gaap_ProvisionForDoubtfulAccounts
Deferred income taxes	(157,089)	111,138
Changes in assets and liabilities net of Agro Trend and Ohio Working Metals acquisitions:
Accounts receivable	33,529	(229,412)
Inventories	(166,755)us-gaap_IncreaseDecreaseInInventories	769,641us-gaap_IncreaseDecreaseInInventories
Income taxes receivable	8,096	(108,513)
Other assets	69,559	67,652
Accounts payable	68,447	151,885
Contracts in progress, net	103,356	(1,048,125)
Customer deposits	(52,094)	(84,795)
Income taxes payable		(821,301)
Accrued expenses	(134,147)	(279,721)
Net cash provided by (used in) operating activities	1,941,805	(2,344)
Cash flows from investing activities:
Purchases of property, plant, and equipment	(633,078)	(842,124)
Return of asset held for lease		146,902
Proceeds from sale of assets	15,870	835,534
Net cash (used in) investing activities	(617,208)	(3,342,839)
Cash flows from financing activities:
Net change in line of credit	(780,894)	3,350,000
Proceeds from term debt	1,000,000	228,339
Repayment of term debt	(1,247,697)us-gaap_RepaymentsOfLongTermDebt	(1,213,550)us-gaap_RepaymentsOfLongTermDebt
Proceeds from the exercise of stock options	7,760	46,390
Dividends paid to stockholders		(404,655)us-gaap_PaymentsOfDividendsCommonStock
Net cash provided by (used in) financing activities	(1,020,831)	2,006,524
Net increase/(decrease) in cash	303,766us-gaap_CashPeriodIncreaseDecrease	(1,338,659)us-gaap_CashPeriodIncreaseDecrease
Cash at beginning of period	207,950	1,546,609
Cash at end of period	511,716	207,950
Supplemental disclosures of cash flow information:
Interest	356,470us-gaap_InterestPaid	296,640us-gaap_InterestPaid
Income taxes	299,988us-gaap_IncomeTaxesPaid	1,644,520us-gaap_IncomeTaxesPaid
Argo Trend [Member]
Cash flows from investing activities:
Purchase of assets		(311,346)
Supplemental disclosures of cash flow information:
Inventories		223,172
Equipment, tools and dies		88,174
Cash paid		311,346
Ohio Metal Working Products Company [Member]
Cash flows from investing activities:
Purchase of assets		(3,171,805)
Supplemental disclosures of cash flow information:
Inventories		1,141,512
Equipment, tools and dies		868,250
Cash paid		3,171,805
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed Land and Building		1,200,000
Non-Cash Activity: Assumed vacation liability		$ (37,957)

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Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.5)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 5

-Article 5

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 15

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

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