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Stock-Based Compensation - Additional Information (Details) - 2012 Equity Incentive Plan - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Dec. 02, 2016
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Dec. 31, 2014
May 31, 2012
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]              
Common stock shares authorized for issuance           880,000 440,000
Restricted Stock              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]              
Restricted stock shares issued       160,600      
Grant date fair value per share       $ 3.85      
Stock compensation expense recognized   $ 229 $ 196 $ 650 $ 611    
Unrecognized stock based compensation expense   $ 1,775   $ 1,775      
Vesting of restricted stock, shares       90,090      
Performance Based Restricted Stock | Subsequent Event              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]              
Vesting of restricted stock, shares 77,000            
Accelerated recognition of remaining compensation expense $ 231            
Minimum              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]              
Expiration period       5 years      
Percent of voting power       10.00%      
Minimum | Restricted Stock              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]              
Grant date fair value per share       $ 1.89      
Maximum              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]              
Expiration period       10 years      
Maximum | Restricted Stock              
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]              
Grant date fair value per share       $ 8.06