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Financial Instruments – Fair Value Measurements (Details) - shares
1 Months Ended
Jun. 06, 2022
Jun. 30, 2022
Jul. 15, 2019
Securities purchase agreement      
Warrants [Abstract]      
Shares of common stock 4,000,000 4,000,000  
Shares of common stock in connection with securities purchase agreements 8,850,000 8,850,000  
Senior secured notes due 2025      
Warrants [Abstract]      
Interest rate     12.50%