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Stock-Based Compensation and Stock Options (Details) - Stock Options - USD ($)
 1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Nov. 01, 2017
Mar. 31, 2016
Sep. 30, 2015
Jan. 31, 2012
Sep. 30, 2017
Sep. 30, 2017
Dec. 31, 2015
January 2012 Plan              
Stock-Based Compensation (Textual) [Abstract]              
Employee options granted to purchase shares of common stock (in shares)       100,000      
Exercise price of employee option shares of common stock (in dollars per share)       $ 28.98      
Options vested and become exercisable annually (in shares)       25,000      
Options canceled (in shares)             25,000
Options forfeited (in shares)             25,000
Options vested (in shares)         50,000 50,000  
Unrecognized stock-based compensation expense         $ 0 $ 0  
September 2015 Plan              
Stock-Based Compensation (Textual) [Abstract]              
Employee options granted to purchase shares of common stock (in shares)     400,000        
Exercise price of employee option shares of common stock (in dollars per share)     $ 8.07        
Options vested and become exercisable annually (in shares)     50,000        
Options vested (in shares)         350,000 350,000  
Options outstanding (in shares)         400,000 400,000  
Total stock-based compensation expense         $ 196,000 $ 587,000  
Unrecognized stock-based compensation expense         $ 196,000 $ 196,000  
Expected duration for recognition of stock based compensation expense (in years)           3 months  
March 2016 Plan              
Stock-Based Compensation (Textual) [Abstract]              
Employee options granted to purchase shares of common stock (in shares)   150,000          
Exercise price of employee option shares of common stock (in dollars per share)   $ 8.55          
Options vested and become exercisable annually (in shares)   37,500          
Options vested (in shares)         37,500 37,500  
Options outstanding (in shares)         112,500 112,500  
Total stock-based compensation expense         $ 11,000 $ 100,000  
Unrecognized stock-based compensation expense         $ 288,000 $ 288,000  
Expected duration for recognition of stock based compensation expense (in years)           2 years 4 months 24 days  
Executive Officer | March 2016 Plan              
Stock-Based Compensation (Textual) [Abstract]              
Options forfeited (in shares)         37,500    
Total stock-based compensation expense         $ (19,000)    
Subsequent Event | October 2017 Plan              
Stock-Based Compensation (Textual) [Abstract]              
Employee options granted to purchase shares of common stock (in shares) 400,000            
Exercise price of employee option shares of common stock (in dollars per share) $ 6.95            
Options vested and become exercisable quarterly (in shares) 50,000