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Share-Based Compensation Plans - Narrative (Details)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Mar. 25, 2016
USD ($)
$ / shares
shares
Feb. 17, 2016
USD ($)
$ / shares
shares
Jul. 30, 2015
agreement
$ / shares
shares
Jun. 23, 2015
officer
$ / shares
shares
Sep. 30, 2016
USD ($)
$ / shares
shares
Sep. 30, 2015
USD ($)
Sep. 30, 2016
USD ($)
plan
$ / shares
shares
Sep. 30, 2015
USD ($)
Dec. 31, 2015
USD ($)
$ / shares
shares
Sep. 15, 2016
shares
May 22, 2015
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Number of share based compensation plans | plan             2        
Share based compensation expense | $         $ 58 $ 1,087 $ 107 $ (109)      
Common stock, par value (in dollars per share) | $ / shares         $ 0.0001   $ 0.0001   $ 0.0001    
Executive Officers                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Vesting period       3 years              
Share based compensation expense | $         $ 49 1,100 $ 105 1,100      
Unrecognized compensation cost related to unvested share-based compensation | $         563   $ 563        
Period of recognizing unrecognized compensation cost related to unvested share-based compensation             3 years        
Stock options granted (in shares)   130,000   50,000              
Number of executive officers | officer       2              
Stock options exercised price (usd per share) | $ / shares   $ 1.04   $ 1.23              
Fair value of options granted | $   $ 125         $ 670   $ 1,200    
Fair value options granted (per share) | $ / shares             $ 0.62   $ 1.08    
Consultants                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Stock options granted (in shares)     1,000,000                
Number of consulting agreements | agreement     2                
Common stock, par value (in dollars per share) | $ / shares     $ 0.0001                
Stock options exercised price (usd per share) | $ / shares     $ 1.27                
Consultant One                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Stock options granted (in shares)     500,000                
Consultant Two                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Stock options granted (in shares)     500,000                
Executive Officers and Employees                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Stock options granted (in shares) 1,030,000                    
Stock options exercised price (usd per share) | $ / shares $ 1.12                    
Fair value of options granted | $ $ 611                    
One year anniversary | Executive Officers                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Vesting period   1 year                  
Two year anniversary | Executive Officers and Employees                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Vesting period 2 years                    
Stock options vesting percentage (as a percent) 25.00%                    
Three year anniversary | Executive Officers and Employees                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Vesting period 3 years                    
Stock options vesting percentage (as a percent) 25.00%                    
Four year anniversary | Executive Officers and Employees                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Vesting period 4 years                    
Stock options vesting percentage (as a percent) 25.00%                    
Five year anniversary | Executive Officers and Employees                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Vesting period 5 years                    
Stock options vesting percentage (as a percent) 25.00%                    
SARs                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Number of equivalent units awarded (in shares)             5,000        
Vesting period             3 years        
Contractual term             5 years        
Share based compensation expense | $         1 $ 12 $ (9) $ (1,200)      
Unrecognized compensation cost related to unvested share-based compensation | $         $ 10   $ 10        
Period of recognizing unrecognized compensation cost related to unvested share-based compensation             3 years        
Employee Stock Option                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Stock options granted (in shares)             1,160,000        
Stock options outstanding (in shares)         1,080,000   1,080,000   1,100,000    
Employee Stock Option | 2015 Stock Plan                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Contractual term             10 years        
Number of shares authorized under the stock option plan (in shares)                   3,500,000  
Maximum number of shares authorized to be granted to a single stockholder (in shares)                     500,000
Stock options granted (in shares)             1,080,000        
Stock options outstanding (in shares)         1,080,000   1,080,000