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Earnings Per Share: Schedule of Earnings Per Share, Basic and Diluted (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2012
Earnings Per Share [Abstract]
Net income – numerator for basic earnings per share and diluted earnings per share - available to common stockholders	$ 4,870	$ 2,332	$ 20,540	$ 6,504
Weighted-average shares, Basic	10,549	11,130	10,668	11,318
Effect of dilutive securities	259	64	218	47
Adjusted weighted-average shares and assumed conversions	10,808	11,194	10,886	11,365
Basic earnings per share (in dollars per share)	$ 0.46	$ 0.21	$ 1.93	$ 0.57
Diluted earnings per share (in dollars per share)	$ 0.45	$ 0.21	$ 1.89	$ 0.57

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