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Stock Compensation Plans - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2015
Mar. 31, 2015
Sep. 30, 2015
May. 13, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation     $ 70  
2014 Stock Incentive Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares available for grant       240,000
Number of common stock granted 960      
Number of common stock issued 960      
Stock-based compensation $ 8   8  
Restricted Stock Units [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation     $ 62  
Restricted stock units, granted   12,546 12,546  
Restricted stock units, vested   4,182 4,182  
Restricted stock units, nonvested outstanding 8,364 8,364 8,364  
Total unrecognized pre-tax compensation expense related to unvested restricted stock unit awards $ 51   $ 51