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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 9 Months Ended
Mar. 31, 2017
Mar. 31, 2017
Mar. 31, 2016
Shares:      
Oustanding, End of Period 683,250 683,250 943,500
Equity Incentive Plan [Member]      
Shares:      
Outstanding, Beginning of Period 853,000 878,000  
Granted 0 26,000  
Exercised (60,250) (84,000)  
Forfeited (159,500) (186,750)  
Oustanding, End of Period 633,250 633,250  
Vested and expected to vest at year end 592,600 592,600  
Exercisable at year end 430,000 430,000  
Weighted-Average Exercise Price (in dollars per share):      
Oustanding, Beginning of Period $ 14.63 $ 14.43  
Granted 0.00 19.58  
Exercised 8.71 9.63  
Forfeited 27.31 25.52  
Outstanding, End of Period 12.00 12.00  
Vested and expected to vest at year end 11.78 11.78  
Exercisable at year end $ 10.47 $ 10.47  
Weighted- Average Remaining Contractual Term (Years):      
Outstanding at year end 5 years 11 months 9 days 5 years 11 months 9 days  
Vested and expected to vest at year end 5 years 9 months 26 days 5 years 9 months 26 days  
Exercisable at year end 5 years 1 month 6 days 5 years 1 month 6 days  
Aggregate Intrinsic Value ($000):      
Outstanding at year end $ 4,233 $ 4,233  
Vested and expected to vest at year end 4,090 4,090  
Exercisable at year end $ 3,519 $ 3,519