v3.26.1
Note 1 - The Company and Its Significant Accounting Policies (Details Textual)
$ / shares in Units, shares in Thousands, $ in Thousands
2 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Jul. 29, 2026
USD ($)
$ / shares
shares
Aug. 27, 2026
USD ($)
Dec. 31, 2025
USD ($)
Jun. 30, 2026
shares
Jun. 30, 2025
shares
Jun. 30, 2026
USD ($)
shares
Jun. 30, 2025
USD ($)
Number of Reportable Segments           1  
Goodwill, Reporting Unit, Number           1  
Goodwill, Impairment Loss | $     $ 0     $ 0 $ 0
Number of Operating Segments           1  
Penny Warrants [Member]              
Class of Warrant or Right, Issued During Period (in shares)       7,400 400    
Class of Warrant or Right, Exercised During Period (in shares)           0  
Machinery and Equipment [Member]              
Property, Plant, and Equipment, Useful Life (Year)       5 years   5 years  
Furniture and Fixtures [Member]              
Property, Plant, and Equipment, Useful Life (Year)       4 years   4 years  
Computer Equipment [Member]              
Property, Plant, and Equipment, Useful Life (Year)       3 years   3 years  
Software, In-Development, Internally Developed, and Purchased [Member]              
Property, Plant, and Equipment, Useful Life (Year)       5 years   5 years  
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | CNNC High Energy Equipment [Member]              
Concentration Risk, Percentage           16.00% 26.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | CNNC High Energy Equipment [Member]              
Concentration Risk, Percentage           14.00% 33.00%
Subsequent Event [Member] | Securities Purchase Agreement Warrants [Member]              
Class of Warrant or Right, Issued During Period (in shares) 15,300            
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) 15,300            
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares $ 0.01            
Conversion of Financing Agreement Debt into Series A Convertible Preferred Stock [Member] | Subsequent Event [Member]              
Debt Conversion, Original Debt, Amount | $ $ 40,000 $ 40,000