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Note 9 - Product Warranty | 12 Months Ended
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Nov. 30, 2017
Notes to Financial Statements |
Product Warranty Disclosure [Text Block] |
( 9 ) | Product Warranty
The Company offers warranties of various lengths to its customers depending on the specific product and terms of the customer purchase agreement. The average length of the warranty period is one year from date of purchase. The Company’s warranties require it to repair or replace defective products during the warranty period at no cost to the customer. The Company records a liability for estimated costs that may be incurred under its warranties. The costs are estimated based on historical experience and any specific warranty issues that have been identified. Although historical warranty costs have been within expectations, there can be no assurance that future warranty costs will not exceed historical amounts. The Company periodically assesses the adequacy of its recorded warranty liability and adjusts the balance as necessary. Changes in the Company ’s product warranty liability included in “accrued expenses” for the years ended November 30, 2017 and 2016 are as follows:
|  | For the twelve months ended |
|  | November 30, 201 7 |  |  | November 30, 201 6 |
Balance, beginnin g |  | $ | 134,373 |  |  | $ | 176,531 |
Settlements / adjustment s |  |  | (276,667 | ) |  |  | (246,235 | )
Warranties issue d |  |  | 210,745 |  |  |  | 204,077 |
Balance, endin g |  | $ | 68,451 |  |  | $ | 134,373 |

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- Definition The entire disclosure for standard and extended product warranties and other product guarantee contracts, including a tabular reconciliation of the changes in the guarantor's aggregate product warranty liability for the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -URI http://asc.fasb.org/topic&trid=2155896 + Details
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