Stock Based Compensation (Schedule of Stock Option Activity) (Details) - USD ($)	6 Months Ended	12 Months Ended
Dec. 31, 2019	Jun. 30, 2019
Number of Shares Subject To Options
Balance at July 1, 2019	259,164
Granted	54,025
Exercised	(2,000)
Forfeited or expired	(15,602)
Outstanding at December 31, 2019	295,587	259,164
Vested or expected to vest at December 31, 2019	278,798
Exercisable at December 31, 2019	189,770
Weighted Average Exercise Price
Balance at July 1, 2019	$ 25.16
Granted	20.50
Exercised	25.14
Forfeited or expired	25.59
Outstanding at December 31, 2019	24.28	$ 25.16
Vested or expected to vest at December 31, 2019	24.32
Exercisable at December 31, 2019	$ 24.56
Weighted Average Remaining Contractual Term
Outstanding	6 years 6 months 21 days	6 years 4 months 13 days
Granted	9 years 11 months 8 days
Vested or expected to vest at December 31, 2019	6 years 4 months 17 days
Exercisable at December 31, 2019	4 years 11 months 12 days
Aggregate Intrinsic Value
Outstanding at December 31, 2019	$ 93,028
Vested or expected to vest at December 31, 2019	83,334
Exercisable at December 31, 2019	$ 33,600

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Weighted average remaining contractual term for option awards granted, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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