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Stock-Based Compensation (Narrative) (Details) - USD ($)
3 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Chief Executive Officer [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Shares issued   2,000
Stock Option Plans [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Period options are excercisable 10 years  
Shares available for future grants 0  
New Long-Term Management Incentive Compensation Plan [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Shares approved to be issued under plan 700,000  
Shares issued 102,183  
Compensation cost $ 0 $ 0
New Long-Term Management Incentive Compensation Plan [Member] | 2017-2019 [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Compensation cost 900,000  
New Long-Term Management Incentive Compensation Plan [Member] | 2018-2020 [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Compensation cost 600,000  
New Long-Term Management Incentive Compensation Plan [Member] | 2019-2021Member    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Compensation cost $ 400,000  
New Omnibus Stock Plan [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Shares approved to be issued under plan 700,000  
Compensation cost $ 300,000 $ 200,000
Period options are excercisable 10 years  
Options issued under stock option plans 36,095 21,439
Shares available for future grants 437,117  
New Omnibus Stock Plan [Member] | Director [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Shares issued 2,590 1,863
Compensation cost $ 100,000 $ 100,000
New Omnibus Stock Plan [Member] | Executive Officer [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Shares issued 6,280  
Restricted Stock or Unit Expense $ 200,000 $ 100,000