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Income Taxes - Income Taxes (Deferred Tax Assets) (Details) - USD ($)
Jun. 30, 2023
Jun. 30, 2022
Income Tax Disclosure [Line Items]    
Total net deferred tax assets $ 218,000 $ 1,432,000
Federal    
Income Tax Disclosure [Line Items]    
Total net deferred tax assets 179,000 947,000
State and Local Jurisdiction    
Income Tax Disclosure [Line Items]    
Total net deferred tax assets $ 39,000 $ 485,000