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Stock Options (Details Textual) - Jun. 30, 2015 - USD ($)
$ in Millions
Total
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Employee Service Share-Based Compensation, Nonvested Awards, Total Compensation Cost Not Yet Recognized $ 1.4
2013 Stock 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 2,138,655
2009 Stock 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 Available for Grant 41,096