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Note A - Summary of Significant Accounting Policies - Finite Lived Intangible Assets (Details) - USD ($) | 12 Months Ended
--- | ---
Sep. 30, 2018 | Sep. 30, 2017
Gross carrying amount | $ 5,797,093 | $ 300,524
Accumulated amortization | 314,538 | 15,737
Net book value amount | $ 5,482,555 | $ 284,787
Customer Relationships [Member] |  |
Useful life (Year) | 15 years |
Gross carrying amount | $ 3,742,000 |
Accumulated amortization | 155,917 |
Net book value amount | $ 3,586,083 |
Patents [Member] |  |
Useful life (Year) | 20 years | 20 years
Gross carrying amount | $ 393,002 | $ 269,433
Accumulated amortization | 24,981 | 15,737
Net book value amount | $ 368,021 | $ 253,696
Certification Marks [Member] |  |
Useful life (Year) | 8 years |
Gross carrying amount | $ 1,068,000 |
Accumulated amortization | 83,437 |
Net book value amount | $ 984,563 |
Other Intangible Assets [Member] |  |
Useful life (Year) | 5 years | 5 years
Gross carrying amount | $ 31,091 | $ 31,091
Accumulated amortization | 6,219 |
Net book value amount | $ 24,872 | $ 31,091
Trademarks [Member] |  |
Useful life (Year) | 8 years |
Gross carrying amount | $ 563,000 |
Accumulated amortization | 43,984 |
Net book value amount | $ 519,016 |

X
- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 928 -SubTopic 340 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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