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Stock-Based Compensation - Additional Information (Details) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Jun. 16, 2016
Aug. 04, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Dividend rate 0.00% 0.00%    
Options Granted $ 1.65      
Shares issued with weighted average grant date fair value 6,516      
Weighted average grant date fair value of fully vested shares $ 6.14      
Stock Options [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Exercise price of options either at or above market price 10.00%      
Term of award 5 years      
Vesting period of award 3 years      
Options Granted $ 1.65 $ 1.05    
Unrecognized compensation expense $ 31,000      
2011 Incentive Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares authorized for issuance (in shares)     750,000 500,000
Number of shares remaining available for future issuance (in shares) 428,468      
2011 Incentive Plan [Member] | Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Unvested restricted shares granted 0