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Fair Value (Details) - USD ($)
3 Months Ended 12 Months Ended
Sep. 30, 2020
Jun. 30, 2020
Fair Value Disclosures [Abstract]    
Fair value balance as of June 30, 2020 $ 14,131,000 $ 14,960,000
Change in fair value reported in the statements of operations (778,000) 766,000
Change in fair value reported in other comprehensive income 70,000 (63,000)
Fair value balance as of September 30, 2020 $ 13,423,000 $ 14,131,000