Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2013	Jun. 30, 2012
Current Assets:
Accounts Receivable, less allowances	$ 8,517	$ 8,332
Noncurrent Assets:
Property, less accumulated depreciation	$ 155,533	$ 148,623
Shareholders’ Equity
Preferred stock, par value	$ 0.00	$ 0.00
Preferred stock, shares authorized	2,500,000	2,500,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.00	$ 0.00
Common stock, shares authorized	80,000,000	80,000,000
Common stock, shares issued	54,213,000	54,213,000
Treasury shares	12,074,000	12,246,000