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Share-Based Compensation Plans - Narrative (Details)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Nov. 03, 2016
$ / shares
shares
Mar. 25, 2016
USD ($)
$ / shares
shares
Feb. 17, 2016
USD ($)
$ / shares
shares
Jul. 30, 2015
agreement
$ / shares
shares
Jun. 23, 2015
officer
$ / shares
shares
Jun. 30, 2016
USD ($)
$ / shares
shares
Jun. 30, 2015
USD ($)
Jun. 30, 2016
USD ($)
plan
$ / shares
shares
Jun. 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 | $           $ 49 $ (30) $ 50 $ (1,197)      
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 | $           $ 50   $ 56        
Unrecognized compensation cost related to unvested share-based compensation | $           720   $ 720        
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         $ 800   $ 1,200    
Fair value options granted (per share) | $ / shares               $ 0.65   $ 1.08    
Executive Officers | Subsequent event                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Stock options granted (in shares) 150,000                      
Stock options exercised price (usd per share) | $ / shares $ 0.87                      
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                  
One year anniversary | Executive Officers | Subsequent event                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Vesting period 1 year                      
Stock options vesting percentage (as a percent) 33.00%                      
Two year anniversary | Executive Officers | Subsequent event                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Vesting period 2 years                      
Stock options vesting percentage (as a percent) 25.00%                      
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 | Subsequent event                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Vesting period 3 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 | $           (2) $ (30) $ (10) $ (1,200)      
Unrecognized compensation cost related to unvested share-based compensation | $           $ 17   $ 17        
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)           1,200,000   1,200,000   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)                       1,500,000
Maximum number of shares authorized to be granted to a single stockholder (in shares)                       500,000
Stock options granted (in shares)               1,200,000        
Stock options outstanding (in shares)           1,200,000   1,200,000        
Employee Stock Option | 2015 Stock Plan | Subsequent event                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Number of shares authorized under the stock option plan (in shares)                     3,500,000