Consolidated Statements of Stockholders' Equity (Unaudited) (Parentheticals) - $ / shares	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Retained Earnings [Member]
Dividends (in dollars per share)	$ 0.40	$ 0.40	$ 0.40
Dividends (in dollars per share)	$ 0.40	$ 0.40	$ 0.40