Annual report pursuant to Section 13 and 15(d)

Note 1 - Summary of Significant Accounting Policies - Finite Lived Intangible Assets (Details)

v3.23.3
Note 1 - Summary of Significant Accounting Policies - Finite Lived Intangible Assets (Details) - USD ($)
$ in Thousands
Sep. 30, 2023
Sep. 30, 2022
Gross carrying amount $ 10,860 $ 10,407
Accumulated amortization 4,768 4,030
Intangible Assets, Net $ 6,092 $ 6,376
Customer Relationships [Member]    
Useful life (Year) 15 years 15 years
Gross carrying amount $ 4,894 $ 4,833
Accumulated amortization 1,582 1,273
Intangible Assets, Net $ 3,312 $ 3,559
Finite-Lived Intangible Asset, Useful Life 15 years 15 years
Certification Marks [Member]    
Useful life (Year) 8 years 8 years
Gross carrying amount $ 584 $ 584
Accumulated amortization 267 133
Intangible Assets, Net $ 317 $ 451
Finite-Lived Intangible Asset, Useful Life 8 years 8 years
Trademarks [Member]    
Gross carrying amount $ 1,333 $ 1,306
Accumulated amortization 700 586
Intangible Assets, Net $ 633 $ 720
Trademarks [Member] | Minimum [Member]    
Useful life (Year) 8 years 8 years
Finite-Lived Intangible Asset, Useful Life 8 years 8 years
Trademarks [Member] | Maximum [Member]    
Useful life (Year) 10 years 10 years
Finite-Lived Intangible Asset, Useful Life 10 years 10 years
Patents [Member]    
Useful life (Year) 20 years 20 years
Gross carrying amount $ 1,119 $ 931
Accumulated amortization 165 118
Intangible Assets, Net $ 954 $ 813
Finite-Lived Intangible Asset, Useful Life 20 years 20 years
Patents [Member] | Maximum [Member]    
Useful life (Year) 20 years  
Finite-Lived Intangible Asset, Useful Life 20 years  
Developed Technology Rights [Member]    
Useful life (Year) 10 years 10 years
Gross carrying amount $ 311 $ 295
Accumulated amortization 22 5
Intangible Assets, Net $ 289 $ 290
Finite-Lived Intangible Asset, Useful Life 10 years 10 years
Other Intangible Assets [Member]    
Useful life (Year) 5 years 5 years
Gross carrying amount $ 6 $ 6
Accumulated amortization 6 6
Intangible Assets, Net $ 0 $ 0
Finite-Lived Intangible Asset, Useful Life 5 years 5 years
Computer Software, Intangible Asset [Member]    
Gross carrying amount $ 2,613 $ 2,452
Accumulated amortization 2,026 1,909
Intangible Assets, Net $ 587 $ 543
Computer Software, Intangible Asset [Member] | Minimum [Member]    
Useful life (Year) 1 year 1 year
Finite-Lived Intangible Asset, Useful Life 1 year 1 year
Computer Software, Intangible Asset [Member] | Maximum [Member]    
Useful life (Year) 3 years 3 years
Finite-Lived Intangible Asset, Useful Life 3 years 3 years