Dividend Reinvestment and Stock Purchase Plan (Details) - USD ($)	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Dividend Reinvestment and Stock Purchase Plan [Abstract]
Limited additional investments, maximum per year	$ 50,000
Stock Issued During Period, Value, New Issues	28,437	26,412	28,809
Number of shares authorized under the plan (in shares)	400,000
Dividend Reinvestment and Stock Purchase Plan, Shares Available for Grant	38,000