Annual report pursuant to Section 13 and 15(d)

Note A - Summary of Significant Accounting Policies - Finite Lived Intangible Assets (Details)

v3.19.3
Note A - Summary of Significant Accounting Policies - Finite Lived Intangible Assets (Details) - USD ($)
 12 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Gross carrying amount $ 5,934,500 $ 5,797,093
Accumulated amortization 787,365 314,538
Net book value amount $ 5,147,135 $ 5,482,555
Customer Relationships [Member]    
Useful life (Year) 15 years 15 years
Gross carrying amount $ 3,742,000 $ 3,742,000
Accumulated amortization 405,384 155,917
Net book value amount $ 3,336,616 $ 3,586,083
Certification Marks [Member]    
Useful life (Year) 8 years 8 years
Gross carrying amount $ 1,068,000 $ 1,068,000
Accumulated amortization 216,937 83,437
Net book value amount $ 851,063 $ 984,563
Trademarks [Member]    
Useful life (Year) 8 years 8 years
Gross carrying amount $ 563,000 $ 563,000
Accumulated amortization 114,359 43,984
Net book value amount $ 448,641 $ 519,016
Patents [Member]    
Useful life (Year) 20 years 20 years
Gross carrying amount $ 530,409 $ 393,002
Accumulated amortization 38,247 24,981
Net book value amount $ 492,162 $ 368,021
Other Intangible Assets [Member]    
Useful life (Year) 5 years 5 years
Gross carrying amount $ 31,091 $ 31,091
Accumulated amortization 12,438 6,219
Net book value amount $ 18,653 $ 24,872