Stock-Based Compensation: Schedule of Stock Options Outstanding (Details) (USD $)	Jun. 30, 2012
Grant Date 09/01/2003
Stock Options Outstanding	2,400
Stock Options Price	$ 24.00
Stock Options Expiration Date	Aug. 31, 2013
Grant Date 12/01/2003
Stock Options Outstanding	3,000
Stock Options Price	$ 23.65
Stock Options Expiration Date	Nov. 30, 2013
Grant Date 01/01/2004
Stock Options Outstanding	5,000
Stock Options Price	$ 24.22
Stock Options Expiration Date	Dec. 31, 2013
Grant Date 03/08/2004
Stock Options Outstanding	7,000
Stock Options Price	$ 21.43
Stock Options Expiration Date	Mar. 08, 2014
Grant Date 06/07/2004
Stock Options Outstanding	2,000
Stock Options Price	$ 24.00
Stock Options Expiration Date	Jun. 07, 2014
Grant Date 01/01/2005
Stock Options Outstanding	19,000
Stock Options Price	$ 20.55
Stock Options Expiration Date	Dec. 31, 2014
Grant Date 01/01/2006
Stock Options Outstanding	4,000
Stock Options Price	$ 23.91
Stock Options Expiration Date	Jan. 01, 2016
Grant Date 08/24/2006
Stock Options Outstanding	6,000
Stock Options Price	$ 23.03
Stock Options Expiration Date	Aug. 24, 2016
Grant Date 05/24/2007
Stock Options Outstanding	2,000
Stock Options Price	$ 24.34
Stock Options Expiration Date	May 24, 2017
Grant Date 07/09/2007
Stock Options Outstanding	1,000
Stock Options Price	$ 24.61
Stock Options Expiration Date	Jul. 09, 2017
Grant Date 10/01/2007
Stock Options Outstanding	2,000
Stock Options Price	$ 24.28
Stock Options Expiration Date	Oct. 01, 2017
Grant Date 01/01/2008
Stock Options Outstanding	15,000
Stock Options Price	$ 23.49
Stock Options Expiration Date	Jan. 01, 2018
Grant Date 05/19/2008
Stock Options Outstanding	2,500
Stock Options Price	$ 22.91
Stock Options Expiration Date	May 19, 2018
Grant Date 07/01/2008
Stock Options Outstanding	2,000
Stock Options Price	$ 22.91
Stock Options Expiration Date	Jul. 01, 2018