Incentive Plans Incentive Plans: Narrative (Details) (USD $)	3 Months Ended			3 Months Ended		3 Months Ended								3 Months Ended		3 Months Ended		3 Months Ended		3 Months Ended
	Sep. 30, 2013 plan	Sep. 30, 2012	Jun. 30, 2013	Sep. 30, 2013 Equity Incentive Plans	Sep. 30, 2012 Equity Incentive Plans	Sep. 30, 2013 Equity Incentive Plans Stock Options [Member]	Sep. 30, 2012 Equity Incentive Plans Stock Options [Member]	Sep. 30, 2013 Equity Incentive Plans Stock Options [Member] Maximum	Sep. 30, 2013 Equity Incentive Plans Restricted Stock [Member]	Sep. 30, 2012 Equity Incentive Plans Restricted Stock [Member]	Sep. 30, 2013 Equity Incentive Plans Restricted Stock [Member] Maximum	Sep. 30, 2013 2010 Equity Incentive Plan Stock Options [Member]	Dec. 31, 2010 2010 Equity Incentive Plan Stock Options [Member]	Sep. 30, 2013 2010 Equity Incentive Plan Restricted Stock [Member]	Dec. 31, 2010 2010 Equity Incentive Plan Restricted Stock [Member]	Sep. 30, 2013 2006 Equity Incentive Plan Stock Options [Member]	Dec. 31, 2006 2006 Equity Incentive Plan Stock Options [Member]	Sep. 30, 2013 2006 Equity Incentive Plan Restricted Stock [Member]	Dec. 31, 2006 2006 Equity Incentive Plan Restricted Stock [Member]	Sep. 30, 2013 Stock Option Plans	Sep. 30, 2013 Stock Option Plans Stock Options [Member]	Sep. 30, 2012 Stock Option Plans Stock Options [Member]	Sep. 30, 2013 Stock Option Plans Stock Options [Member] Maximum	Sep. 30, 2013 2003 Stock Option Plan Stock Options [Member]	Dec. 31, 2003 2003 Stock Option Plan Stock Options [Member]	Sep. 30, 2013 1996 Stock Option Plan Stock Options [Member]	Dec. 31, 1996 1996 Stock Option Plan Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of share-based compensation plans	4
Share-based compensation expense	$ 131,000	$ 134,000
Income tax benefit recognized for share-based compensation plans	7,000	71,000
Number of shares authorized for Equity Incentive Plan													586,250		288,750		365,000		185,000						352,500		1,150,000.00
Annual limitation on awards granted to an individual under Equity Incentive Plan												117,250		43,312		73,000		27,750
Award vesting period								5 years			5 years												5 years
Maximum term for stock awards								10 years															10 years
Term used to calculate expected volatility						84 months															84 months
Stock options, Exercised				5,000		5,000	28,000													0
Stock options, Forfeitured				0			4,000													75,000	75,000	7,500
Granted				0																0
Number of shares available for grant						188,450			169,600												14,900	14,900		14,900		0
Unrecognized share-based compensation expense, stock options				770,000	1,100,000															0
Unrecognized share-based compensation expense, restricted stock									454,000	760,000
Share-based compensation cost not yet recognized, weighted average period for recognition						2 years 0 months 0 days	2 years 8 months 12 days		1 year 8 months 12 days	2 years 8 months 12 days
Forfeiture rate for Equity Incentive Plans						20.00%	20.00%		20.00%	20.00%
Treasury stock, Shares used to fund Equity Incentive Plans for restricted stock	7,465,517		7,275,466												288,750				185,000
Restricted stock, Vesting and distribution									0	800
Restricted stock, Forfeited									0	1,500
Restricted stock, Fair value of shares vested and distributed									$ 0	$ 9,000