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Other Comprehensive Income (Loss) (Details 1) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2018
Mar. 31, 2020
Mar. 31, 2019
Other Comprehensive Income (Loss), Net of Tax [Abstract]          
Unrealized holding gains (losses) on available-for-sale securities $ 1 $ 2   $ 3
Tax effect 0 1 $ 0 0 1
Net-of-tax amount $ 1 $ 1   $ 2