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Fair Value Measurements (Details Textual)
Jun. 30, 2021
USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]  
Senior notes $ 711,300
Convertible Notes Payable [Member] | Fair Value, Inputs, Level 2 [Member]  
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]  
Convertible Debt, Fair Value Disclosures 633,300
Convertible Debt 460,100
Senior Notes [Member] | Fair Value, Inputs, Level 2 [Member]  
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]  
Notes Payable, Fair Value Disclosure 721,700
Senior notes $ 711,300