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Note 13 - Income Taxes (Details Textual) - USD ($)
$ in Thousands
 12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2023
Income Tax Expense (Benefit) $ 437 $ 2,142  
Effective Income Tax Rate Reconciliation, Percent (3.20%) (20.60%)  
Deferred Tax Assets, Net of Valuation Allowance $ 252 $ 762  
Deferred Tax Liabilities, Gross 252 762  
Accrued Income Taxes, Current 1,100 300  
Operating Loss Carryforwards, Limitations on Use, Ownership Change, Post-change Net Operating Loss, Fully Available to Offset Current Fiscal Year Pre-Change Income Subject to Limitation     $ 12,000
Operating Loss Carryforwards, Limitations on Use, Ownership Change, Post-change Net Operating Loss, Disallowed Recognized Built-in Loss, Carried Forward as Operating Loss 3,600 9,300  
Operating Loss Carryforwards 516,700    
Operating Loss Carryforwards, Not Subject to Expiration 190,000    
Operating Loss Carryforward, Subject To Expire 324,700    
Deferred Tax Assets, Valuation Allowance 136,552 137,250  
Unrecognized Tax Benefits $ 518 1,313 $ 2,948
Neo [Member]      
Open Tax Year 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024    
Research Tax Credit Carryforward [Member]      
Tax Credit Carryforward, Amount $ 2,900    
Other Noncurrent Assets [Member]      
Deferred Tax Assets, Net of Valuation Allowance 300 800  
Other Noncurrent Liabilities [Member]      
Deferred Tax Liabilities, Gross $ 300 $ 800