Restricted Stock Awarded Outside the 2013 Stock Incentive Plan (Tables) - Restricted Stock Units (RSUs) [Member]  | 
3 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2017  | ||||||||||||||||||||||||||||||||||||||||||||||||||
| Nonvested Restricted Stock Shares Activity | 
  Restricted Stock activity for the three months ended December 31, 2017 and 2016 is as follows:  
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| Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value | 
  The weighted average restricted stock award date fair value information for the three months ended December 31, 2017 and 2016 follows:  
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