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Supplemental Financial Information (Details - Intangible assets) - USD ($)
$ in Thousands
Mar. 31, 2026
Jun. 30, 2025
Intangible Asset, Finite-Lived [Line Items]    
Gross carrying amount $ 26,296 $ 27,722
Accumulated amortization (23,969) (23,984)
Net book value 2,327 3,738
Developed Technology [Member]    
Intangible Asset, Finite-Lived [Line Items]    
Gross carrying amount 6,793 6,793
Accumulated amortization (6,244) (6,066)
Net book value 549 727
Customer Relationships [Member]    
Intangible Asset, Finite-Lived [Line Items]    
Gross carrying amount 19,115 19,116
Accumulated amortization (17,371) (16,321)
Net book value 1,744 2,795
Order Backlog [Member]    
Intangible Asset, Finite-Lived [Line Items]    
Gross carrying amount 297 297
Accumulated amortization (297) (149)
Net book value 0 148
Trademarks and Trade Names [Member]    
Intangible Asset, Finite-Lived [Line Items]    
Gross carrying amount 91 1,516
Accumulated amortization (57) (1,448)
Net book value $ 34 $ 68