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Incentive Plans: Equity Incentive Plan Policy: Schedule of Share-based Compensation, Restricted Stock Units Award Activity (Details) - Restricted Stock [Member] - Equity Incentive Plan [Member] - $ / shares
3 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Shares:    
Unvested, Beginning of Period 111,000  
Awarded 0 15,000
Vested 0 (87,750)
Forfeited (2,000) (7,000)
Unvested, End of Period 109,000  
Expected to vest at March 31, 2013 87,200  
Weighted-Average Award Date Fair Value (in dollars per share):    
Restricted stock, Nonvested, Weighted Average Award Date Fair Value $ 14.16  
Awarded 0.00  
Vested 0.00  
Forfeited 13.30  
Restricted stock, Nonvested, Weighted Average Award Date Fair Value 14.45  
Expected to vest at March 31, 2013 $ 14.45