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Stock Based Compensation (Details Textual)
3 Months Ended
Dec. 31, 2016
USD ($)
$ / shares
shares
Employee Stock Option [Member]  
Class of Stock [Line Items]  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | shares 200,000
Subsidiary Option Grants [Member]  
Class of Stock [Line Items]  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | shares 428,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 3 years
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term 10 years
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price | $ / shares $ 1
Deferred Compensation Arrangement with Individual, Fair Value of Shares Issued | $ $ 75,000
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period 10 years
Deferred Compensation, Share-based Payments [Member]  
Class of Stock [Line Items]  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | shares 228,000
Xcede joint venture [Member] | Subsidiary Option Grants [Member]  
Class of Stock [Line Items]  
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options | $ $ 163,000
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term 17 months
Employee Stock Plan [Member]  
Class of Stock [Line Items]  
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options | $ $ 140,000
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term 14 months