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Product Warranties | 12 Months Ended
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Sep. 30, 2018
Payables and Accruals [Abstract] |
Product Warranty Disclosure [Text Block] | Product Warranties Product warranty activity for the years ended September 30 was as follows:
| 2018 |  | 2017
Balance at the beginning of the period | $ | 121,450 |  |  | $ | 130,841 |
Accruals for warranties for products sold in the period | 26,539 |  |  | 75,816 |
Fulfillment of warranty obligations | (40,451 | ) |  | (85,207 | )
Balance at the end of the period | $ | 107,538 |  |  | $ | 121,450 |

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- References No definition available. + Details
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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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