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Earnings Per Share (Details) - shares
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Stock options        
Earnings Per Share [Line Items]        
Antidilutive securities (in shares) 577,500 584,375 577,500 584,375
Warrants | Private placement        
Earnings Per Share [Line Items]        
Antidilutive securities (in shares) 6,160,000 6,160,000 6,160,000 6,160,000
Warrants | Public        
Earnings Per Share [Line Items]        
Antidilutive securities (in shares) 9,823,072 9,823,072 9,823,072 9,823,072