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Supplemental Financial Information (Details - Purchased intangible assets) - USD ($)
$ in Thousands
Dec. 31, 2022
Jun. 30, 2022
Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount $ 27,750 $ 25,280
Accumulated amortization (13,637) (10,721)
Net book value 14,113 14,559
Developed Technology Rights [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount 6,331 5,731
Accumulated amortization (3,175) (2,493)
Net book value 3,156 3,238
Customer Relationships [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount 18,188 16,498
Accumulated amortization (7,613) (5,700)
Net book value 10,575 10,798
Order or Production Backlog [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount 1,406 1,406
Accumulated amortization (1,406) (1,356)
Net book value 0 50
Noncompete Agreements [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount 400 400
Accumulated amortization (400) (400)
Net book value 0 0
Trademarks [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross carrying amount 1,425 1,245
Accumulated amortization (1,043) (772)
Net book value $ 382 $ 473