Represents the term of the lessor's leasing arrangement under capital leases.

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Represents the number of major customers accounting for 10% or more of the specified concentration risk benchmark, which includes, but not limited to, sales revenue, accounts receivable, etc

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The interest rate for overdue trade receivables as a percent of account balances per month.

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No definition available.

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- Definition

Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-SubTopic 35
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-Paragraph 1
-Subparagraph (b)
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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

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-Publisher FASB
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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of income tax expense (benefit) from continuing operations attributable to an adjustment of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity.

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Cash received for the sale of real estate that is not part of an investing activity during the current period.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

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Note 1 - Summary of Significant Accounting Policies (Details Textual)		1 Months Ended	9 Months Ended	12 Months Ended
	Mar. 29, 2018 USD ($)	Dec. 31, 2017	Aug. 31, 2018 USD ($)	Nov. 30, 2019 USD ($)	Dec. 31, 2018	Nov. 30, 2018 USD ($)
Proceeds from Sale of Real Estate, Total	$ 1,500,000
Overdue Trade Receivables Interest Rate Percent of Account Balances Per Month				1.50%
Goodwill, Impairment Loss						$ 375,000
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent		35.00%		21.00%	21.00%	21.00%
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability			$ 298,000			$ 298,000
Contract with Customer, Liability, Revenue Recognized				$ 185,000
Research and Development Expense, Total				149,000		178,000
Advertising Expense				198,000		312,000
Product [Member]
Contract with Customer, Liability, Revenue Recognized				$ 16,000		$ 202,000
Maximum [Member]
Property, Plant and Equipment, Useful Life				40 years
Lessor, Capital Lease, Term of Contract				3 years
Maximum [Member] \| Assets Leased to Others [Member]
Property, Plant and Equipment, Useful Life				5 years
Minimum [Member]
Property, Plant and Equipment, Useful Life				3 years
Minimum [Member] \| Assets Leased to Others [Member]
Property, Plant and Equipment, Useful Life				3 years
Customer Concentration Risk [Member] \| Revenue Benchmark [Member]
Number Of Major Customers				1		0
Customer Concentration Risk [Member] \| Revenue Benchmark [Member] \| Maximum [Member]
Concentration Risk, Percentage				21.00%		6.00%