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Summary of Significant Accounting Policies (Narrative) (Details) - USD ($)
 1 Months Ended 3 Months Ended
Jul. 31, 2021
Sep. 30, 2021
Sep. 30, 2020
Operating Loss Carryforwards [Line Items]      
Income Tax Expense (Benefit)   $ 1,031 $ 1,477
Share based tax expense   7,800,000  
Tax Credit Carryforward, Amount   39,900,000  
Deferred Tax Assets, Gross   12,100,000  
Other income $ 100,000 100,000  
Legal Fees   100,000  
State and Local Jurisdiction [Member]      
Operating Loss Carryforwards [Line Items]      
Income Tax Expense (Benefit)   1,031 1,477
Federal [Member]      
Operating Loss Carryforwards [Line Items]      
Income Tax Expense (Benefit)   $ 0 $ 0