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Incentive Plans: Equity Incentive Plan Policy: Schedule of Incentive Plan Stock Option Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Shares:    
Oustanding, End of Period 1,000,000.0 1,100,000.0
Equity Incentive Plans    
Shares:    
Outstanding, Beginning of Period 961,500  
Granted 0  
Exercised (13,000)  
Forfeited (3,000)  
Oustanding, End of Period 945,500  
Vested and expected to vest at March 31, 2013 866,300  
Exercisable at March 31, 2013 549,500  
Weighted-Average Exercise Price (in dollars per share):    
Oustanding, Beginning of Period $ 13.83  
Granted 0.00  
Exercised 7.34  
Forfeited 7.43  
Outstanding, End of Period 13.92  
Vested and expected to vest at September 30, 2015 13.85  
Exercisable at September 30, 2015 $ 13.38  
Weighted- Average Remaining Contractual Term (Years):    
Outstanding at September 30, 2015 6 years 1 month 5 days  
Vested and expected to vest at September 30, 2015 5 years 10 months 3 days  
Exercisable at September 30, 2015 4 years 23 days  
Aggregate Intrinsic Value ($000):    
Outstanding at September 30, 2015 $ 4,481  
Vested and expected to vest at September 30, 2015 4,313  
Exercisable at September 30, 2015 $ 3,643