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Borrowings, Scheduled Maturities of Long-term Borrowings (Details) - USD ($)
$ in Thousands
Jun. 30, 2020
Jun. 30, 2019
Scheduled maturities of long-term borrowings [Abstract]    
2021 $ 1,800  
2022 5,800  
Total long-term borrowings $ 7,600 $ 13,600