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Stock-Based Compensation - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Jun. 14, 2017
Share-based Compensation Arrangement by Share-based Payment Award      
Stock-based compensation expense $ 1.1 $ 0.9  
Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount $ 0.4 $ 0.3  
Restricted Stock      
Share-based Compensation Arrangement by Share-based Payment Award      
Restricted stock granted (in shares) 135,849    
Restricted stock granted, grant date fair value (in dollars per share) $ 15.20    
Employee restricted stock award, vesting period 2 years    
Non-employee restricted stock award vest grant over period 1 year    
Nonvested restricted shares outstanding (in shares) 147,961    
Unrecognized compensation cost $ 1.6    
Unrecognized compensation cost, recognition period 18 months    
Restricted Stock | Grant Date      
Share-based Compensation Arrangement by Share-based Payment Award      
Restricted stock award, vesting percentage 33.33%    
Restricted Stock | First Anniversary      
Share-based Compensation Arrangement by Share-based Payment Award      
Restricted stock award, vesting percentage 33.33%    
Restricted Stock | Second Anniversary      
Share-based Compensation Arrangement by Share-based Payment Award      
Restricted stock award, vesting percentage 33.33%    
Restricted Stock Units (RSUs)      
Share-based Compensation Arrangement by Share-based Payment Award      
Restricted stock granted (in shares) 10,755    
Restricted stock granted, grant date fair value (in dollars per share) $ 15.42    
Amended and Restated 2013 Equity Incentive Plan      
Share-based Compensation Arrangement by Share-based Payment Award      
Number of shares reserved for issuance (in shares)     1,700,000
Shares available for issuance (in shares) 911,625    
Long Term Incentive Plan | Restricted Stock Units (RSUs)      
Share-based Compensation Arrangement by Share-based Payment Award      
Performance period 3 years    
Service period 2 years