Quarterly report [Sections 13 or 15(d)]

Note 11 - Goodwill and Intangibles - Finite Lived Intangible Assets (Details)

v3.26.1
Note 11 - Goodwill and Intangibles - Finite Lived Intangible Assets (Details) - USD ($)
Mar. 31, 2026
Dec. 31, 2025
Sep. 30, 2025
Gross carrying amount $ 16,278,000   $ 15,917,000
Accumulated amortization 7,880,000   6,564
Net carrying amount 8,398,000   9,353
Intangible Asset, Finite-Lived, before Accumulated Amortization 16,278,000   15,917,000
Intangible Asset, Finite-Lived, Accumulated Amortization 7,880,000   6,564
Intangible Asset, Finite-Lived, after Accumulated Amortization $ 8,398,000   $ 9,353
Customer Relationships [Member]      
Useful life (Year) 15 years   15 years
Gross carrying amount $ 3,742,000   $ 3,742,000
Accumulated amortization 2,027,000   1,902,000
Net carrying amount $ 1,715,000   $ 1,840,000
Intangible Asset, Finite-Lived, Useful Life 15 years   15 years
Intangible Asset, Finite-Lived, before Accumulated Amortization $ 3,742,000   $ 3,742,000
Intangible Asset, Finite-Lived, Accumulated Amortization 2,027,000   1,902,000
Intangible Asset, Finite-Lived, after Accumulated Amortization $ 1,715,000   $ 1,840,000
Certification Marks [Member]      
Useful life (Year) 8 years   8 years
Gross carrying amount $ 1,068,000   $ 1,068,000
Accumulated amortization 1,068,000   1,017,000
Net carrying amount $ 0   $ 51,000
Intangible Asset, Finite-Lived, Useful Life 8 years   8 years
Intangible Asset, Finite-Lived, before Accumulated Amortization $ 1,068,000   $ 1,068,000
Intangible Asset, Finite-Lived, Accumulated Amortization 1,068,000   1,017,000
Intangible Asset, Finite-Lived, after Accumulated Amortization 0   51,000
Trademarks [Member]      
Gross carrying amount 563,000   563,000
Accumulated amortization 0   537,000
Net carrying amount 563,000   26,000
Intangible Asset, Finite-Lived, before Accumulated Amortization 563,000   563,000
Intangible Asset, Finite-Lived, Accumulated Amortization 0   537,000
Intangible Asset, Finite-Lived, after Accumulated Amortization $ 563,000   $ 26,000
Trademarks [Member] | Minimum [Member]      
Useful life (Year) 8 years   8 years
Intangible Asset, Finite-Lived, Useful Life 8 years   8 years
Trademarks [Member] | Maximum [Member]      
Useful life (Year) 10 years   10 years
Intangible Asset, Finite-Lived, Useful Life 10 years   10 years
Patents [Member]      
Useful life (Year) 20 years 20 years 20 years
Gross carrying amount $ 1,495,000   $ 1,443,000
Accumulated amortization 310,000   278,000
Net carrying amount $ 1,185,000   $ 1,165,000
Intangible Asset, Finite-Lived, Useful Life 20 years 20 years 20 years
Intangible Asset, Finite-Lived, before Accumulated Amortization $ 1,495,000   $ 1,443,000
Intangible Asset, Finite-Lived, Accumulated Amortization 310,000   278,000
Intangible Asset, Finite-Lived, after Accumulated Amortization 1,185,000   1,165,000
Software, Internally Developed [Member]      
Gross carrying amount 5,498,000   2,830,000
Accumulated amortization 9,410,000   6,271,000
Net carrying amount 3,912,000   9,101,000
Intangible Asset, Finite-Lived, before Accumulated Amortization 5,498,000   2,830,000
Intangible Asset, Finite-Lived, Accumulated Amortization 9,410,000   6,271,000
Intangible Asset, Finite-Lived, after Accumulated Amortization $ 3,912,000   $ 9,101,000
Software, Internally Developed [Member] | Minimum [Member]      
Useful life (Year) 1 year   1 year
Intangible Asset, Finite-Lived, Useful Life 1 year   1 year
Software, Internally Developed [Member] | Maximum [Member]      
Useful life (Year) 10 years   10 years
Intangible Asset, Finite-Lived, Useful Life 10 years   10 years