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Share-Based Compensation (Narrative) (Details)
12 Months Ended
Oct. 27, 2014
shares
Dec. 31, 2016
USD ($)
employee
non-employee
$ / shares
shares
Dec. 31, 2015
USD ($)
$ / shares
Dec. 31, 2014
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Maximum amount to be paid to individual pursuant to cash bonus award | $   $ 2,000,000    
Shares granted | shares   0    
Per share exercise price | $ / shares   $ 7.49 $ 7.49  
Expiration period (in years) 10 years      
Forfeiture rate       0.00%
Allocated SBC expense | $   $ (1,300,000) $ (500,000) $ (100,000)
Tranche One        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting percentage   20.00%    
Tranche Two        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting percentage   20.00%    
Tranche Three        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting percentage   20.00%    
Tranche Four        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting percentage   20.00%    
Tranche Five        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting percentage   20.00%    
Stock Option        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Service period   5 years    
Stock options issued | $   $ 0 $ 0  
2014 Equity Plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of awards granted after expiration date | shares   0    
Number of shares authorized and reserved for issuance | shares 2,350,956      
Number of shares available for grant | shares   2,186,028    
Shares granted | shares   0    
Restricted Stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Unamortized share-based compensation expense | $   $ 100,000    
Unamortized share-based compensation expense, weighted average period of recognition   5 months 1 day    
Equity Option        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Unamortized share-based compensation expense | $   $ 800,000    
Unamortized share-based compensation expense, weighted average period of recognition   2 years 9 months 25 days    
Executive Officers | 2014 Equity Plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number eligible for awards | employee   3    
Non-employee Directors        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Percentage of amount of retainer fee deferred (up to)   100.00%    
Non-employee Directors | 2014 Equity Plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number eligible for awards | non-employee   6    
Other Employees | 2014 Equity Plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number eligible for awards | employee   220    
Officer [Member] | Restricted Stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Percentage of awards vested in period   100.00%    
Common Stock | Chief Executive Officer | Stock Option        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period 5 years