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Shareholders' Protection Rights Agreement	12 Months Ended
Shareholders' Protection Rights Agreement	Jun. 30, 2017
Shareholders Protection Rights Agreement [Abstract]
Shareholders' Protection Rights Agreement	Shareholders' Protection Rights Agreement The Company's Shareholders Protection Rights Agreement dated as of February 8, 2007, between the Company and Wells Fargo Bank, N.A. (as successor to National City Bank), as Rights Agent, expired on its own terms on February 17, 2017, and was not renewed or replaced.