v3.26.3
Note G - Income Taxes (Details Textual) - USD ($)
$ in Thousands
 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Federal, State and Local Income Tax Expense (Benefit), Gross, Continuing Operations $ 100 $ 2,700
Foreign Income Tax Expense (Benefit), Continuing Operations 300 100
Deferred Tax Assets, Gross 14,573 14,347
Deferred Tax Assets, Valuation Allowance $ 10,395 $ 4,814
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 21.00% 21.00%
Tax Jurisdiction of Domicile [Extensible Enumeration] Income Tax Jurisdiction, Domestic Federal [Member] Income Tax Jurisdiction, Domestic Federal [Member]
Natural Alternatives International Europe SA [Member] | Swiss Federal Tax Administration (FTA) [Member]    
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 18.00%  
Dividends and Interest Paid $ 3,100  
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Percent 5.00%  
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount $ 200  
Income Tax Jurisdiction, Domestic Federal [Member]    
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount 5,600  
Deferred Tax Assets, Gross 10,400  
Deferred Tax Assets, Valuation Allowance 10,400  
Deferred Tax Assets, Net of Valuation Allowance 0  
Operating Loss Carryforwards 12,200  
Income Tax Jurisdiction, Domestic State and Local [Member]    
Operating Loss Carryforwards 9,600  
Income Tax Jurisdiction, Domestic Federal, State, and Local [Member]    
Tax Credit Carryforward, Amount $ 1,700