Incentive Plans: Stock Option Plan Policy: Schedule of Stock Option Plan Stock Option Activity (Details) (USD $) In Thousands, except Share data, unless otherwise specified			3 Months Ended	9 Months Ended
Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013 Stock Option Plans	Mar. 31, 2013 Stock Option Plans
Shares:
Outstanding, Beginning of Period	1,124,500	1,178,000	412,700	420,200
Granted			0	0
Exercised			0	0
Forfeited			0	(7,500)
Oustanding, End of Period	1,124,500	1,178,000	412,700	412,700
Stock options, Vested and expected to vest			412,700	412,700
Stock options, Exercisable			412,700	412,700
Weighted-Average Exercise Price (in dollars per share):
Oustanding, Beginning of Period			$ 24.30	$ 24.11
Granted			$ 0.00	$ 0.00
Exercised			$ 0.00	$ 0.00
Forfeited			$ 0.00	$ 13.67
Outstanding, End of Period			$ 24.30	$ 24.30
Vested and expected to vest at March 31, 2013			$ 24.30	$ 24.30
Exercisable at March 31, 2013			$ 24.30	$ 24.30
Weighted- Average Remaining Contractual Term (Years):
Outstanding at March 31, 2013			1 year 9 months 4 days	1 year 9 months 4 days
Vested and expected to vest at March 31, 2013			1 year 9 months 4 days	1 year 9 months 4 days
Exercisable at March 31, 2013			1 year 9 months 4 days	1 year 9 months 4 days
Aggregate Intrinsic Value ($000):
Outstanding at March 31, 2013			$ 0	$ 0
Vested and expected to vest at March 31, 2013			0	0
Exercisable at March 31, 2013			$ 0	$ 0

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

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