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Stock-Based Compensation Plans - Narrative (Details) (USD $)
3 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based compensation arrangement strike price of phantom stock options as percent of book value (in hundredths) 100.00%  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value $ 150,000 $ 12,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares) 0 0
2008 Stock Option Plan [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized 0 0
2011 Phantom Stock Option and Long-term Incentive Plan [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares) 900,000  
Allocated Share-based Compensation Expense $ 159,800 $ 106,800
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares) 227,330 243,473